Cholecystokinin dipeptoid antagonists: design, synthesis, and anxiolytic profile of some novel CCK-A and CCK-B selective and mixed CCK-A/CCK-B antagonists
作者:P. R. Boden、M. Higginbottom、D. R. Hill、D. C. Horwell、J. Hughes、D. C. Rees、E. Roberts、L. Singh、N. Suman-Chauhan、G. N. Woodruff
DOI:10.1021/jm00057a005
日期:1993.3
The design, synthesis, and structure-activity relationships (SAR) for the development of selective dipeptoid ligands for both of the cholecystokinin (CCK) receptor subtypes CCK-A and CCK-B are described. The SAR developed is used to design a ligand with equal nanomolar binding affinity for both the CCK-A and CCK-B receptors. Example compounds such as [1R-[1 alpha[R*(R*)],2 beta]]-4-[[2-[[3-(1H-indol-3-yl)-
The structure-affinity relationships (SAR) between the N-terminii of a series of alpha-methyl-tryptophanylphenethylamide derivatives and the cholecystokinin (CCK) B receptor are discussed. A series of compounds with the general formula R-X-alpha-methyl-tryptophanylphenethylamide was prepared, where R is a cycloalkyl, a bicycloalkyl or a tricycloalkyl group and X is a urethane, thiourethane, amide, urea or a sulphinamide linking group. The CCK-B receptor binding affinities of these are discussed. The SAR form part of a systematic program for the rational design of 'dipeptoid' analogues of the neuropeptide CCK. Beginning with 1,1-dimethylpropyl (+/-)-[1-(1H-indol-3-ylmethyl)-1-methyl-2-oxo-2-[(2-phenylethyl)amino]ethyl]carbamate (IC50 = 4720 nM on CCK-B binding affinity) the N-terminal moiety was systematically changed for groups of varying size, shape and lipophilicity until the optimal N-terminal group was obtained and the favoured linking group chosen, resulting in the compound tricyclo[3.3.1.1(3,7)]dec-2-yl(R)-[(1H-indol-3-ylmethyl)-1-methyl-2-oxo-2-[(2-phenylethyl)amino]ethyl]carbamate with an IC50 = 32 nM on CCK-B receptor binding affinity.
HORWELL, DAVID C.;BIRCHMORE, BARBARA;BODEN, PHILLIP R.;HIGGINBOTTOM, MICH+, EUR. J. MED. CHEM., 25,(1990) N, C. 53-60
作者:HORWELL, DAVID C.、BIRCHMORE, BARBARA、BODEN, PHILLIP R.、HIGGINBOTTOM, MICH+