Synthesis of new amino acid and peptide derivatives of estradiol and their binding affinities for the estrogen receptor
摘要:
A series of amino acid and peptide derivatives of estradiol have been synthesized by coupling 17 beta-aminoestra-1,3,5(10)-trien-3-ol, 17-hydrazonoestra-1,3,5(10)-trien-3-ol with amino acids or peptides, using tetrahydrothiazole-2-thione, N-hydroxy-1,4-epoxycyclohex-5-ene-2,3-dicarbonylimide, benzotriazolyloxy-tris(dimethylamino)phosphonium hexafluorophosphate, and p-nitrophenol as reagents. N-protected peptidyl steroids were deprotected by traditional methods. The relative binding affinities of the deprotected derivatives to the estrogen receptor were determined by competitive radioligand binding assay.
Studies of the enzymatic synthesis of N-protected amino acid-estradiol derivatives in an organic solvent
作者:Ai-Xin Yan、Guo-Wen Xing、Yun-Hua Ye、Gui-Ling Tian、Man-Sau Wong、Kin-Sing Lee
DOI:10.1016/s0040-4039(00)00797-8
日期:2000.7
Amino acid-estradiol derivatives were synthesized via protease-catalyzed condensation for the first time and the optimum conditions were studied systematically. (C) 2000 Elsevier Science Ltd. All rights reserved.