Publications - 1980 - 1989

218.
J. Lautz, H. Kessler, W.F. van Gunsteren, H.J.C. Berendsen, R.M. Scheek, R. Kaptein, J. Blaney; Restrained Molecular Dynamics Simulations of Cyclic Peptides, - in: Peptides 1988 (Proc. 20th Europ. Peptide Symp., Tübingen) (hrsg.: G. Jung, E. Bayer) Walter de Gruyter, Berlin, New York, 1989, 438-440.

217.
H. Kessler, P. Schmieder, M. Kurz; Implementation of the DEPT Sequence in Inverse Shift Correlation; the DEPT-HMQC; J. Magn. Reson. 1989, 85, 400-405.

216.
U. Anders, G. Gemmecker, H. Kessler, C. Griesinger; Conformational analysis of amino acid side chains in peptides by quantitative evaluation of cross-peaks in COLOC-spectra; Fresenius Z. Anal. Chem. 1987, 327, 72-73.

215.
H. Kessler, S. Steuernagel; Conformational Determination by NMR Spectroscopy; - in: Peptide Pharmaceuticals - Approaches to the Design of Novel Drugs (Hrsg.: D. Ward) Open University Press, Buckingham, 1991, 18-46.

214.
H. Kessler, U. Anders, G. Gemmecker; Application of Half-Gaussian Shaped Pulses for Selective Excitation; Bruker Report 1989 (No. 1) 31-32.

213.
M. Hofmann, M. Gehrke, W. Bermel, H. Kessler; Proton-Detected C,H-Correlation NMR Techniques for the Complete Assignment of All Proton and Carbon Resonances of a Cyclic Peptide; Magn. Reson. Chem. 1989, 27, 877-886.

212.
H. Kessler, M. Schudok, A. Haupt; Dimerization of Cyclic Hexapeptides: Strong Increase of Biological Activity, - in: Peptides 1988 (Proc. 20th Europ. Pept. Symp., Tübingen) (Hrsg.: G. Jung, E. Bayer) Walter de Gruyter, Berlin, New York, 1989, 664-666.

211.
H. Kessler, U. Anders, G. Gemmecker, S. Steuernagel; Improvement of NMR Experiments by Employing Semiselective Half-Gaussian-Shaped Pulses; J. Magn. Reson. 1989, 85, 1-14.

210.
H. Kessler, M. Will, J. Antel, H. Beck, G.M. Sheldrick; Conformational Analysis of Didemnins. A Multidisciplinary Approach by Means of X-ray, NMR, Molecular Dynamics, and Molecular-Mechanics Techniques; Helv. Chim. Acta 1989, 72, 530-555.

209.
J. Lautz, H. Kessler, W.F. van Gunsteren, H.-P. Weber, R.M. Wenger; On the Dependence of Molecular Conformation on the Type of Solvent Environment: A Molecular Dynamics Study of Cyclosporin A; Biopolymers 1990, 29, 1669-1687.

208.
H. Kessler, R. Kerssebaum, A.G. Klein, R. Obermeier, M. Will; Peptidkonformationen 50. Synthese und Konformationsanalyse von cyclischen Alanin-Analogen des Thymopoietins durch NMR-Spektroskopie und Molecular-Dynamics-Rechnungen im Vakuum und in Lösung; Liebigs Ann. Chem. 1989, 269-294.

207.
H. Kessler, M. Kottenhahn; Synthesis of Linear and Cyclic O-a-Glycopeptides; - in: Peptides 1988 (Proc. of the 20th European Peptide Symposium, Tübingen, 1988) (Hrsg.: G. Jung, E. Bayer) Walter de Gruyter, Berlin, New York, 1989, 331-333.

206.
H. Kessler, J.W. Bats, J. Lautz, A. Müller; Conformation of Antamanide; Liebigs Ann. Chem. 1989, 913-928.

205.
H. Kessler, A. Müller, K.-H. Pook; Assignment of All Proton, Carbon, and Nitrogen NMR Signals of Antamanide in Chloroform Solution; Liebigs Ann. Chem. 1989, 903-912.

204.
H. Kessler, G. Gemmecker, B. Haase, S. Steuernagel; Improvement of Relayed NOESY Type Experiments by Implantation of Spin-Lock Sequences; Magn. Reson. Chem. 1988, 26, 919-926.

203.
H. Kessler, S. Steuernagel, M. Will, G. Jung, R. Kellner, D. Gillessen, T. Kamiyama; The Structure of the Polycyclic Nonadecapeptide Ro 09-0198; Helv. Chim. Acta 1988, 71, 1924-1929.

202.
H. Kessler, J.W. Bats, K. Wagner, M. Will; Conformational Analysis of Cyclic Peptides in Solution; Biopolymers 1989, 28, 385-395.

201.
H. Kessler, A. Haupt, M. Schudok; Structural Optimization of Peptides for cytoprotection of Rat Liver Cells; - in: Peptide Chemistry 1987 (Proc. Jap. Symp. on Peptide Chemistry) (Hrsg: T. Shiba, S. Sakakibara) Protein Research Foundation, Osaka, Japan, 1988, 627-630.

200.
H. Kessler, U. Anders, G. Gemmecker; Determination of Heteronuclear Long-Range Coupling Constants by Soft-H,C-COSY; J. Magn. Reson. 1988, 78, 382-388.

199.
K. Ziegler, M. Frimmer, H. Kessler, A. Haupt; Azidobenzamido-008, a new photosensitive substrate for the "multispecific bile acid transporter" of hepatocytes: evidence for a common transport system for bile acids and cyclosomatostatins in basolateral membranes; Biochem. Biophys. Acta 1988, 945, 263-272.

198.
G. Quinkert, H.G. Schmalz, E. Walzer, S. Grosss, T. Kowalczyk-Przewloka, C. Schierloh, G. Dürner, J.W. Bats, H. Kessler; Totalsynthese des Pseudoguaianolids (+)-Confertin; Liebigs Ann. Chem. 1988, 283-315.

197.
H. Kessler, G. Gemmecker, S. Steuernagel; NOESY-TOCSY, eine vorteilhafte 2D-NMR Technik zur Analyse von Peptidsequenzen; Angew. Chem. 1988, 100, 600-603; Angew. Chem. Int. Ed. Engl. 1988, 27, 564-566.

196.
H. Kessler, M. Will, G.M. Sheldrick, J. Antel; Assignment of Proton and Carbon NMR Signals of Didemnin A in Solution; Magn. Reson. Chem. 1988, 26, 501-506.

195.
H. Kessler, G. Gemmecker, B. Haase; Relayed-NOE Experiments in the Rotating Frame for Sequence Analysis of Peptides; J. Magn. Res. 1988, 77, 401-408.

194.
H. Kessler, A. Haupt, M. Schudok, K. Ziegler, M. Frimmer; Peptide conformations 49. Synthesis and structure-activity-relationships of side chain modified peptides of cyclo(-D-Pro-Phe-Thr-Lys-Trp-Phe-); Int. J. Peptide Protein Res. 1988, 32, 183-193.

193.
H. Kessler, M. Klein, K. Wagner; Peptide conformations 48. Conformation and biological activity of proline containing cyclic retro-analogues of somatostatin; Int. J. Peptide Protein Res. 1988, 31, 481-498.

192.
H. Kessler, C. Griesinger, J. Lautz, A. Müller, W.F. van Gunsteren, H.J.C. Berendsen; Conformational Dynamics Detected by Nuclear Magnetic Resonance NOE-Values and J Coupling Constants; J. Am. Chem. Soc. 1988, 110, 3393-3396.

191.
K.H. Usadel, H. Kessler, G. Rohr, K. Kusterer, K.D. Palitzsch, U. Schwedes; Cytoprotection by Somatostatins; - in: Somatostatin, Basic and Clinical Status (Hrsg.: S. Reichlin) Plenum Press, New York, London, 1987, 193-200.

190.
J. Lautz, H. Kessler, J.M. Blaney, R.M. Scheek, W.F. van Gunsteren; Calculating three-dimensional molecular structure from atom-atom distance information: cyclosporin A; Int. J. Pept. Prot. Res. 1989, 33, 281-288.

189.
H. Kessler, A. Haupt, M. Will; Design of Conformationally Restricted Cyclopeptides for the Inhibition of Cholate Uptake of Hepatocytes; - in: Computer Aided Drug Design (Hrsg.: T.J. Perun, C.L. Probst) Marcel Dekker, New York, 1989, 461-484.

188.
H. Kessler, G. Gemmecker, A. Haupt, M. Klein, K. Wagner, M. Will; Peptide Conformations 47. Alanine Containing Analogues of Cyclo-(D-Pro-Phe-Thr-Lys(Z)-Trp-Phe-) - Conformationally Controlled Structure-Activity-Relationships; Tetrahedron 1988, 44, 745-759.

187.
H. Kessler, G. Gemmecker, A. Haupt, J. Lautz, M. Will; Cytoprotective Peptides - Conformational Analysis of a Superpotent Cyclic Hexapeptide Using NMR Spectroscopy and MD Calculations; - in: NMR Spectroscopy and Drug Research (Alfred Benzon Symposium 26) (Hrsg.: J.W. Jaroszewki, K. Schaumburg, H. Kofod) Munksgaard, Copenhagen, 1988, 138-152.

186.
G. Quinkert, U. Billhardt, H. Jacob, H. Fischer, J. Glenneberg, P. Nagler, V. Autze, N. Heim, M. Wacker, T. Schwalbe, Y. Kurth, J.W. Bats, G. Dürner, G. Zimmermann, H. Kessler; Photolactonisierung: ein neuer synthetischer Zugang zu Makroliden; Helv. Chim. Acta 1987, 70, 771-861.

185.
H. Kessler, K. Wagner, M. Will; Conformational analysis of a cyclic hexapeptide by rotating frame NOE (ROE) evaluation and molecular dynamics (MD) calculations; - in: Peptides 1987 (Proc. 10th Am. Pept. Symp., St. Louis) (Hrsg.: G.R. Marshall) ESCOM Science Publ., Leiden, The Netherlands, 1988, 35-36.

184.
H. Kessler, M. Gehrke, C. Griesinger; Zweidimensionale NMR-Spektroskopie, Grundlagen und Übersicht über die Experimente; Angew. Chem. 1988, 100, 507-554; Angew. Chem. Int. Ed. Engl. 1988, 27, 490-536.

183.
H. Kessler, M. Kottenhahn, A. Kling, C. Kolar; Synthese von O-(a-Glyco)peptiden mit dem N-Iodsuccinimid-Verfahren; Angew. Chem. 1987, 99, 919-921; Angew. Chem. Int. Ed. Engl. 1987, 26, 888-890.

182.
H. Kessler, J.W. Bats, C. Griesinger, S. Koll, M. Will, K.W. Wagner; Peptide Conformations 46. Conformational Analysis of a Superpotent Cytoprotective Cyclic Somatostatin Analogue; J. Am. Chem. Soc. 1988, 110, 1033-1049.

181.
H. Kessler, S. Steuernagel, D. Gillessen, T. Kamiyama; Complete Sequence Determination and Localisation of One Imino and Three Sulfide Bridges of the Nonadecapeptide Ro 09-0198 by Homonuclear 2D-NMR Spectroscopy. The DQF-RELAYED-NOESY-Experiment; Helv. Chim. Acta 1987, 70, 726-741.

180.
J. Lautz, H. Kessler, R. Boelens, R. Kaptein, W.F. van Gunsteren; Peptide conformations 45. Conformational analysis of a cyclic thymopoietin-analogue by 1H n.m.r. spectroscopy and restrained molecular dynamics simulations; Int. J. Peptide Protein Res. 1987, 30, 404-414.

179.
J. Lautz, H. Kessler, R. Kaptein, W.F. van Gunsteren; Molecular dynamics simulation of cyclosporin A: The crystal structure and dynamic modelling of a structure in apolar solution based on NMR data; J. Comp.-Aided Mol. Design 1987, 1, 219-241.

178.
H. Kessler, K. Wagner, M. Will; Peptide Conformations 44. Analysis of Peptides Conformation by NMR Spectroscopy; - in: Trends in Medicinal Chemistry (Proc. 9th Int. Symp. Med. Chem., Berlin) (Hrsg.: F. Mutschler, E. Winterfeld) VCH, Weinheim, 1987, 143-157.

177.
H. Kessler, A. Haupt, M. Klein, K. Wagner; Peptide Conformations 43. Common Structural Features for Cytoprotection Activity of Cyclic Retro Analogues of Somatostatin; - in: Peptides 1986 (Proc. 19th European Pept. Symp.) (Hrsg.: D. Theodoropoulus) Walter de Gruyter, Berlin, New York, 1987, 327-330.

176.
H. Kessler, A. Haupt, M. Frimmer, K. Ziegler; Synthesis of a cyclic retro analogue of somatostatin suitable for photoaffinity labelling; Int. J. Peptide Protein Res. 1987, 29, 621-628.

175.
H. Kessler, C. Griesinger, K. Wagner; Peptide Conformations 42. Conformation of Side Chains in Peptides Using Heteronuclear Coupling Constants Obtained by Two-Dimensional NMR Spectroscopy; J. Am. Chem. Soc. 1987, 109, 6927-6933.

174.
H. Kessler, C. Griesinger, R. Kerssebaum, K. Wagner, R.R. Ernst; Separation of Cross-Relaxation and J Cross-Peaks in 2D Rotating-Frame NMR Spectroscopy; J. Am. Chem. Soc. 1987, 109, 607-609.

173.
W. Bermel, C. Griesinger, H. Kessler, K. Wagner; Assignment of Carbonyl Groups and Sequence Analysis in Peptides by Inverse Correlation Using Long-Range Couplings; Magn. Reson. Chem. 1987, 25, 325-326.

172.
H. Kessler, C. Griesinger, G. Zimmermann; Comparison of Four Pulse Sequences for the Routine Application of Proton-Carbon Shift Correlation; Magn. Reson. Chem. 1987, 25, 579-583.

171.
H. Kessler, M. Klein, A. Müller, K. Wagner, J.W. Bats, K. Ziegler, M. Frimmer; Konformative Voraussetzungen für die biologische Aktivität von cytoptotectiv wirksamen Cyclopeptiden; Angew. Chem. 1986, 98, 1030-1032; Angew. Chem. Int. Ed. Engl. 1986, 25, 997-999.

170.
G.S. Rao, H. Lemoch, H. Kessler, I. Damm, V. Eiermann, S. Koll, J. Zarbock, K.H. Usadel; Prevention of Phalloidin-induced Lesions on Isolated Rat Hepatocytes by Novel Synthetic Analogues of Somatostatin; Klin. Wochenschr. 1986, 64 (Suppl. VII) 79-86.

169.
K.H. Usadel, H. Kessler, G. Rohr, K. Kusterer, K.D. Palitzsch, U. Schwedes; Cytoprotective Properties of Somatostatins; Klin. Wochenschr. 1986, 64 (Suppl. VII) 59-63.

168.
H. Kessler, M. Gehrke, A. Haupt, M. Klein, A. Müller, K. Wagner; Common Structural Features for Cytoprotection Activities of Somatostatin, Antamanide and Related Peptides, Klin. Wochenschr. 1986, 64 (Suppl. VII) 74-78.

167.
H. Kessler; Designing Activity and Receptor Selectivity in Cyclic Peptide Hormone Analogs; - in: Design and Synthesis of Organic Molecules Based on Molecular Recognition (Hrsg.: G. van Binst) Springer Verlag, Berlin 1986, 301-304.

166.
H. Kessler, H. Oschkinat, C. Griesinger, W. Bermel; Transformation of Homonuclear Two-Dimensional NMR Techniques into One-Dimensional Techniques Using Gaussian Pulses; J. Magn. Reson. 1986, 70, 106-133.

165.
H. Kessler, A. Müller; Peptidkonformationen 41. Eine ungewöhnliche Konformation des cyclischen Peptapeptids cyclo-(Pro-Pro-Phe-Phe-Gly-) in DMSO; Liebigs Ann. Chem. 1986, 1687-1704.

164.
H. Kessler, W. Bermel, C. Griesinger, C. Kolar; NMR-spektroskopische Konstitutionsaufklärung von Glycopeptiden mit der COLOC-Technik; Angew. Chem. 1986, 98, 352-353; Angew. Chem. Int. Ed. Engl. 1986, 25, 342-344.

163.
H. Kessler, B. Kutscher; Peptidkonformationen 40. Cyclische Hexapeptidanaloge des Thymopoietins. Synthese und Konformationsstudien; Liebigs Ann. Chem. 1986, 914-931.

162.
H. Kessler, B. Kutscher, A. Klein; Peptidkonformationen 39. NMR-Studien zur Konformation von Cyclopentapeptidanalogen des Thymopoietins; Liebigs Ann. Chem. 1986, 893-913.

161.
H. Kessler, B. Kutscher; Synthese von cyclischen Pentapeptidanalogen des Thymopoietins. Cyclisierungen mit Carbodiimid und 4-(Dimethylamino)pyridin; Liebigs Ann. Chem. 1986, 869-892.

160.
G. Quinkert, N. Heim, J. W. Bats, H. Oschkinat, H. Kessler; Die Struktur des Flechten-Macrolids (+)-Aspicilin; Angew. Chem. 1985, 97, 985-986; Angew. Chem. Int. Ed. Engl. 1985, 24, 987-988.

159.
H. Kessler, G. Becker, H. Kogler, J. Friese, R. Kerssebaum; 2-(2'-Pyridyl)-ethyl-ester (Pet-ester) derivatives of polyfunctional amino acids; Int. J. Pept. Prot. Res. 1986, 28, 342-346.

158.
H. Kessler, W. Bermel, C. Griesinger, P. Hertl, E. Streich, A. Rieker; Assignments of the Carbon Resonances in tert-Butylated 2-Naphthols by the Two-Dimensional C-Relayed H,C-COSY Technique; J. Org. Chem. 1986, 51, 596-601.

157.
H. Kessler, B. Kutscher, R. Kerssebaum, A. Klein, J. Lautz, R. Obermeier, H. Müllner, W.F. van Gunsteren, R. Boelens, R. Kaptein; Design, Synthesis, and Conformation of Superactive Thymopoietin-Analogues - in: Peptides - Structure and Fucntion (Proc. 9th Amer. Pept. Symp.) (Hrsg.: C.M. Deber, V.J. Hruby, K.D. Kopple) Pierce Chem. Comp., Rockford, Ill., USA, 1985, 83-92.

156.
C. Zechel, H. Kessler, R. Geiger; Peptide Conformations 37. Synthesis and Conformational Studies of Enkephalinlike Cyclic Peptides and Depsipeptides - in: Peptides, Structure and Function (Proc. 9th Amer. Pept. Symp.) (Hrsg.: C.M. Deber, V.J. Hruby, K.D. Kopple) Pierce Chem. Comp. Rockford, Ill. USA, 1985, 507-510.

155.
K. Eckard, H. Schwarz, G. Becker, H. Kessler; Monitoring and Optimization of Deprotection Reactions of Peptides by Direct Sampling with Fast Atom Bombardment Mass Spectrometry; J. Org. Chem. 1986, 51, 483-486.

154.
H. Kessler, H. Oschkinat, H. R. Loosli; Two-Dimensional NMR Spectroscopy on the Immunosuppressive Peptide, Cyclosporin A - in: Methods in Stereochemical Analysis (Hrsg.: R. M. Carlson, W. R. Croasmun) Verlag Chemie International, Deerfield Beach, USA, 1987 (Vol. 9) 259-299.

153.
H. Kessler, M. Kühn, T. Löschner; Synthese von Virginiamycin S1 und Virginiamycin S4; Liebigs Ann. Chem. 1986, 21-31.

152.
H. Kessler, M. Kühn, T. Löschner; Synthese des Benzylethers von Virginiamycin S1; Liebigs Ann. Chem. 1986, 1-20.

151.
H. Kessler, H. Oschkinat; Spektrenvereinfachung zur Ermittlung von Kopplungskonstanten aus homonuclear-korrelierten 2D-NMR-Spektren; Angew. Chem. 1985, 97, 689-690; Angew. Chem. Int. Ed. Engl. 1985, 24, 690-692.

150.
G. Hägele, W. Kückelhaus, J. Seega, G. Tossing, H. Kessler, R. Schuck; Methylsubstituierte Phosphorverbindungen, II. L-Men (R)P(X)Cl (R = Cl, L-Men, D-Men; X = :,S). Charakterisierung singulärer, diastereotoper und enantiotoper Methylgruppen durch 1H-, 13C- und 31P-NMR-Techniken; Z. Naturforsch. 1985, 40b, 1053-1063.

149.
H. Kessler, A. Müller, H. Oschkinat; Differences and Sums of Traces within COSY-Spectra (DISCO) for the Extraction of Coupling Constants: 'Decoupling' After the Measurement; Magn. Reson. Chem. 1985, 23, 844-852.

148.
H. Kessler, W. Bermel, A. Müller, K.-H. Pook; Modern NMR Spectroscopy of Peptides - in: The Peptides (Hrsg.: S. Udenfried, J. Meienhofer, V. J. Hruby) Academic Press, Orlando, 1985 (Vol. 7) 437-473.

147.
K. Ziegler, M. Frimmer, H. Kessler, I. Damm, V. Eiermann, S. Koll, J. Zarbock; Modified somatostatins as inhibitors of a multispecific transport system for bile acids and phallotoxins in isolated heptatocytes; Biochim. Biophys. Acta 1985, 845, 86-93.

146.
H. Kessler, W. Bermel, C. Griesinger; Determination of Carbon-Carbon Connectivities, Assignment of Quaternary Carbons, and Extraction of Carbon-Carbon Coupling Constants by Carbon-Related Hydrogen-Carbon Spectroscopy; J. Magn. Reson. 1985, 62, 573-579.

145.
H. Kessler, M. Bernd; Peptidkonformationen 36. Konformationsuntersuchungen an vier cyclischen Heptapeptiden durch NMR-Spektroskopie; Liebigs Ann. Chem. 1985, 1145-1167.

144.
H. Kessler, B. Kutscher; Synthesis and NMR Investigation of Cyclic Pentapeptide Analogues of Thymopentin; Tetrahedron Lett. 1985, 26, 177-180.

143.
H. Kessler, W. Bermel, C. Griesinger; Recognition of NMR Proton Spin Systems of Cyclosporin A via Heteronuclear Proton-Carbon Long-Range Couplings; J. Am. Chem. Soc. 1985, 107, 1083-1084.

142.
Kessler, H.; Loosli, H. R.; Oschkinat, H.; Investigation of Peptides by Two-Dimensional NMR Spectroscopy - The Conformation of Cyclosporin A in Solution, in: "Peptides 1984" (Proc. 18th Europ. Pept. Symp., Schweden) - Ragnarsson, U. (Ed.) Almqvist u. Wiksell, Int., Uppsala 1984, 65-79.

141.
Kessler, H.; Becker, G.; Kogler, H.; Wolff, M.; 2-(2-Pyridyl-)Ethyl Esters. A New Carboxyl Protecting Group in Peptide Synthesis, Tetrahedron Lett. 25, 3971-3974 (1984).

140.
Kessler, H.; Bermel, W.; Peptide Conformations 34. Conformational Analysis of Peptides by Two-Dimensional NMR Spectroscopy, in: "Methods of Stereochemical Analysis" (Vol. 6) - Takeuchi, A.; Marchand, P. (Eds.) VCH Publishers, Inc. 1986, 179-205.

139.
Kessler, H.; Hölzemann, G.; Zechel, C.; Peptide conformations 33. Conformational analysis of cyclic enkephalin analogs of the type Tyr-cyclo-(Nw-Xxx-Gly-Phe-Leu-), Int. J. Peptide Protein Res. 25, 267-279 (1985).

138.
H. Kessler, C. Griesinger, J. Lautz; Bestimmung von Konnektivitäten über kleine Protonen-Kohlenstoff-Kopplungen mit einer neuen zweidimensionalen NMR-Technik, Angew. Chem. 1984, 96, 434-435); Angew. Chem. Int. Ed. Engl. 1984, 23, 444-459.

137.
H. Kessler, C. Griesinger, J. Zarbock, H.R. Loosli; Peptide Conformations 32. Assignment of Carbonyl Carbons and Sequence Analysis in Peptides by Heteronuclear Shift Correlation via Small Coupling Constants with Broadband Decoupling in t1 (COLOC), J. Magn. Reson. 1984, 57, 331-336.

136.
H.R. Loosli, H. Kessler, H. Oschkinat, H.P. Weber, T.J. Petcher, A. Widmer; Peptide Conformations 31. The Conformation of Cyclosporin A in in the Crystal and in Solution, Helv. Chim. Acta 1985, 68, 682-704.

135.
H. Kessler, H.R. Loosli, H. Oschkinat; Peptide Conformations, XXX. Assignment of the 1H-, 13C-, and 15N-NMR Spectra of Cyclosporin A in CDCl3 and C6D6 by a Combination of Homo- and Heteronuclear Two-Dimensional Techniques, Helv. Chim. Acta 1985, 68, 661-681.

134.
M. Bickel, H. Kessler, W. König, V. Teetz, W. Stoll; Long-term inhibition of gastric acid secretion by somatostatin and analogues in rats, Acta Endocrinologica (Suppl. 253) 1983, 102, 106-107.

133.
H. Kessler, H. Oschkinat, O.W. Sþrensen, H. Kogler, R.R. Ernst; Multiple-Quantum-Filtered Homonuclear J,d Spectra, J. Magn. Reson. 1983, 55, 329-333.

132.
H. Kessler, G. Hölzemann, R. Geiger; Peptide Conformations, XXIX. Conformational Studies of Some Cyclic Enkephalin Analogues by Two-dimensional NMR-Spectroscopy, in Peptides: Structure, Function, Activity (Proc. 8th Am. Pept. Symp.) (Hrsg.: V. Hruby, D.H. Rich) Pierce Chemical Comp., Rockford, Ill., USA 1983, 295-298.

131.
H. Kessler, H. Oschkinat, G. Zimmermann, H. Möhrle, M. Bieghold, W. Arz, H. Förster; Anwendung der hochaufgelösten Festkörper-NMR-Spektroskopie zur Bestimmung der Ring-Ketten-Tautomerie, Chem. Ber. 1984, 117, 702-709.

130.
H. Kessler, B. Kutscher, G. Mager, E. Grell; Synthese des Streptogramin-B-analogen Cyclodepsipeptides cyclo[-(Boc)Ser-D-Abu-Pro-(Me)Phe-Pip-Phg-O], Liebigs Ann. Chem. 1983, 1541-1550.

129.
H. Kessler, M. Bernd, H. Kogler, J. Zarbock, O.W. Sþrensen, G. Bodenhausen, R.R. Ernst; Peptide Conformations, XXVIII. Relayed Heteronuclear Correlation Spectroscopy and Conformational Analysis of Cyclic Hexapeptides Containing the Active Sequence of Somatostatin, J. Am. Chem. Soc. 1983, 105, 6944-6952.

128.
H. Kessler, W. Bermel, G. Krack, J.W. Bats, H. Fuess, W.E. Hull; Peptidkonformationen, XXVII. cyclo-[L-Pro-(Bzl)Gly-D-Pro]. Synthese und Konformation im Kristall und in Lösung, Chem. Ber. 1983, 116, 3164-3181.

127.
H. Kessler, H. Kogler; Peptidkonformationen, XXVI. Ein- und zweidimensionale 1H-NMR-Untersuchung zur Konformation der beiden cyclischen Pentapeptide cyclo-[Pro-Phe-Gly-Ser-Gly] und cyclo-[Pro-Ser-Gly-Phe-Gly], Liebigs Ann. Chem. 1983, 316-329.

126.
H. Kessler, R. Siegmeier; 9-Fluorenylmethyl Esters as Carboxyl Protecting Group, Tetrahedron Lett. 1983, 24, 281-282.

125.
H. Kessler, R. Schuck; Peptide Conformations, XXV. Application of Homonuclear and Heteronuclear Two-Dimensional NMR-Spectroscopy to Cyclolinopeptide A, in Peptides 1982 (Hrsg.: K. Blaha, P. Malon) Walter de Gruyter, Berlin 1983, 797-800.

124.
H. Kessler, V. Eiermann; Peptide Conformations, XXIV. Homo- and Heteronuclear 2D NMR Spectroscopy of Cyclic Pentapeptides Containing the Active Sequence of Somatostatin, Tetrahedron Lett. 1982, 23, 4689-4692.

123.
H. Kessler, M. Bernd, I. Damm; Peptide Conformations, XXIII. NMR Investigations of Cyclic Hexapeptides Containing the Active Sequence of Somatostatin, Tetrahedron Lett. 1982, 23, 4685-4688.

122.
H. Kessler, R. Schuck, R. Siegmeier, J.W. Bats, H. Fuess, H. Förster; Peptidkonformationen, XXII. Die Konformation von cyclo-[Pro2-(NB)GLy] im Kristall und in Lösung durch Röntgen-strukturanalyse und ein- und zweidimensionaler NMR-Spektroskopie, Liebigs Ann. Chem. 1983, 231-247.

121.
H. Kessler, R. Schuck; Peptide Conformations, XXI. Homo- and Heteronuclear Two-Dimensional NMR Spectroscopy of Cyclic Peptides, in Chemistry of Peptides and Proteins (Hrsg.: W. Voelter, E. Bayer, Y.A. Ovchinnikov, E. Wünsch) Walter de Gruyter, Berlin 1984 (Vol. 2) 233-238.

120.
F.A.A.M. de Leeuw, C. Altona, H. Kessler, W. Bermel, A. Friedrich, G. Krack, W.E. Hull; Peptide Conformations, XX. Conformational Analysis of Proline Rings from Proton Spin-Spin Coupling Constants and Force-Field Calculations: Application to Three Cyclic Tripeptides, J. Am. Chem. Soc. 1983, 105, 2237-2246.

119.
H. Kessler; Peptidkonformationen, XIX. Konformation und biologische Wirkung von cyclischen Peptiden, Angew. Chem. 1982, 94, 509-520; Angew. Chem. Int. Ed. Engl. 1982, 21, 512-523.

118.
H. Kessler, R. Schuck, R. Siegmeier; Peptide Conformation, XVIII. Analysis of the Conformational Equilibrium of cyclo[Pro-NBGLy2] by means of Two-dimensional NMR-Spectroscopy, J. Am. Chem. Soc. 1982, 104, 4486-4487.

117.
H. Kessler, W. Bermel, A. Friedrich, G. Krack, W.E. Hull; Peptide Conformation, XVII. cyclo-(L-Pro-L-Pro-D-Pro). Conformational Analysis by 270- and 500-MHz One- and Two-Dimensional 1H NMR-Spectroscopy, J. Am. Chem. Soc. 1982, 104, 6297-6304.

116.
H. Kessler, D. Ziessow; Zweidimensionale NMR-Spektroskopie, Nachr. Chem. Tech. Lab. 1982, 30, 488-497.

115.
H. Kessler, W. Bermel, H. Förster; Peptidkonformationen, XVI. Festkörper-13C-NMR-Spektren von Cyclotriprolinen, Angew. Chem. 1982, 94, 703; Angew. Chem. Int. Ed. Engl. 1982, 21, 689.

114.
H. Kessler, W. Hehlein, R. Schuck; Peptide Conformations, XV. One and Two-Dimensional 1H-, 13C-, and 15N- NMR Studies of cyclo(Pro-Phe-Gly-Phe-Gly)n (n = 1, 2): Selective Complexation of Lithium Ions (n = 1) and Potassium Ions (n = 2), J. Am. Chem. Soc. 1982, 104, 4534-4540.

113.
H. Kessler, G. Zimmermann, H. Förster, J. Engel. G. Oepen, W.S. Sheldrick; Ist die Konformation eines Moleküls im Kristall und in Lösung gleich? NMR-Befunde an Festkörper und Lösung im Vergleich zur Röntgen-Strukturbestimmung, Angew. Chem. 1981, 93, 1085-1086; Angew. Chem. Int. Ed. Engl. 1981, 20, 1053-1055.

112.
H. Kessler, A. Friedrich, G. Krack, W.E. Hull; Peptide Conformations, XIV. NMR Analysis and Conformation of Cyclotriprolines, in Peptides: Synthesis, Structure, Function (Hrsg.: D.H. Rich, E. Gross) Pierce Chemical Comp., Rockford, Ill., USA, 1981, 335-338.

111.
H. Kessler, G. Hölzemann; Peptidkonformationen, XIII. cyclo-Enkephaline - Synthese und Konformationsstudien, Liebigs Ann. Chem. 1981, 2028-2044.

110.
H. Kessler, M. Feigel; Direct Observation of Recombination Barriers of Ion Pairs by Dynamic NMR Spectroscopy, Acc. Chem. Res. 1982, 15, 2-8.

109.
H. Kessler, G. Krack, G. Zimmermann; Double-INDOR-Difference Spectroscopy (DID). A Simple Method to Aid the Analysis of Overlapping Spin Systems, J. Magn. Reson. 1981, 44, 208-211.

108.
H. Kessler, A. Friedrich, W.E. Hull; Peptide Conformation, XII. Conformation of Cyclo-(L-Pro3) in Solution, J. Org. Chem. 1981, 46, 3892-3895.

107.
H. Kessler, G. Hölzemann; Peptidkonformation, XI. cyclo-Leu(5)-Enkephalin, Angew. Chem. 1981, 93, 90-91; Angew. Chem. Int. Ed. Engl. 1981, 20, 124-125.

106.
G. Binsch, H. Kessler; Die kinetische und mechanistische Auswertung von NMR-Spektren, Angew. Chem. 1980, 92, 445-463; Angew. Chem. Int. Ed. Engl. 1980, 19, 411-428.

105.
P. Kondor, H. Kessler; Peptide Conformations, X. Conformation of Cyclic 5-Peptides, in Peptides: Structure and Function (Proc. 9th Am. Pept. Symp.) (Hrsg.: E. Gross, J. Meienhofer) Pierce Chemical Comp., Rockford, Ill., USA, 1979, 181-184.

104.
H. Kessler, P. Krämer, G. Krack; Peptide Conformations, IX. Conformational Studies on Cyclotripeptides Containing N-Benzyl-Glycine, Isr. J. Chem. 1980, 20, 188-195.

103.
H. Kessler; Peptide Conformations, VIII. Conformational Mobility of the Backbone of Cyclic Tripeptides, in Stereodynamics of Molecular Systems (Hrsg.: R.H. Sarma) Pergamon Press, Oxford, New York, Frankfurt, Paris, 1979, 187-196.

102.
J.W. Bats, H. Fuess, H. Kessler, R. Schuck; Zur Konformation geschützter Aminosäuren, VI. tert-Butoxycarbonyl-L-a-phenylalanin. Kristallstruktur und Konformationsumwandlungen in Lösung., Chem. Ber. 1980, 113, 520-530.