Synthesis of a novel class of heteroaromatic amino acids and their use in the preparation of analogs of luteinizing hormone-releasing hormone
作者:John J. Nestor、Bonnie L. Horner、Teresa L. Ho、Gordon H. Jones、Georgia I. McRae、Brian H. Vickery
DOI:10.1021/jm00369a016
日期:1984.3
A novel class of heterocyclic aromatic amino acids based on the 3-(2-benzimidazolyl)alanine system has been generated by chiral synthesis from D- or L-aspartic acid. The use of variously substituted o-phenylenediamines for condensation with the beta-carboxyl function of alpha-benzyl N-(benzyloxycarbonyl)-D-aspartate has led to a series of amino acids of graded hydrophobicity with a steric bulk similar
通过从D-或L-天冬氨酸手性合成,产生了基于3-(2-苯并咪唑基)丙氨酸系统的一类新型的杂环芳香族氨基酸。使用各种取代的邻苯二胺与α-苄基N-(苄氧基羰基)-D-天冬氨酸的β-羧基官能团缩合可产生一系列具有梯度疏水性的氨基酸,其空间体积类似于色氨酸。以类似的方式,我们从邻氨基苯硫酚制备了3-(2-苯并噻唑基)-D-丙氨酸,从邻氨基苯酚制备了3-(2-苯并恶唑基)-D-丙氨酸。将这些氨基酸掺入促黄体生成激素释放激素(LH-RH)的6位上可产生一系列非常有效的激动剂类似物(高达LH-RH效力的160倍),其剂量范围为0.1至0。