Synthesis of new amino acid and peptide derivatives of estradiol and their binding affinities for the estrogen receptor
作者:Ye Yun-hua、Huang Yun-sheng、Wang Zhi-qing、Chen Su-ming、Tiant Ying
DOI:10.1016/0039-128x(93)90015-f
日期:1993.1
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.