Design, syntheses, and structure–Activity relationships of indan derivatives as endothelin antagonists; new lead generation of non-peptidic antagonist from peptidic leads
摘要:
A new lead generation of non-peptidic ETA antagonists from two peptidic ETA-selective ones. BQ-123 and FR139317, was performed. Using computer assisted molecular modeling, a putative pharmacophore was constructed from the superposition of the reported three-dimensional structure of the cyclic peptide BQ-123 and a presumable beta -turn active conformation of the linear peptide FR139317 formed by an intramolecular hydrogen bond. According to this model, a new series of indan derivatives were designed and synthesized. Among these, 5-isobutyrylamino-6-(1-naphthylmethyloxy)-3-(2-thienyl)-3-indancarboxylic acid (1b) showed a moderate ETA antagonistic activity (IC50=28 muM). (C) 2001 Elsevier Science Ltd. All rights reserved.
Design, syntheses, and structure–Activity relationships of indan derivatives as endothelin antagonists; new lead generation of non-peptidic antagonist from peptidic leads
摘要:
A new lead generation of non-peptidic ETA antagonists from two peptidic ETA-selective ones. BQ-123 and FR139317, was performed. Using computer assisted molecular modeling, a putative pharmacophore was constructed from the superposition of the reported three-dimensional structure of the cyclic peptide BQ-123 and a presumable beta -turn active conformation of the linear peptide FR139317 formed by an intramolecular hydrogen bond. According to this model, a new series of indan derivatives were designed and synthesized. Among these, 5-isobutyrylamino-6-(1-naphthylmethyloxy)-3-(2-thienyl)-3-indancarboxylic acid (1b) showed a moderate ETA antagonistic activity (IC50=28 muM). (C) 2001 Elsevier Science Ltd. All rights reserved.