Nonisomerizable analogs of (Z)- and (E)-4-hydroxytamoxifen. Synthesis and endocrinological properties of substituted diphenylbenzocycloheptenes
作者:Raymond McCague、Guy Leclercq、V. Craig Jordan
DOI:10.1021/jm00402a005
日期:1988.7
corresponding derivatives of tamoxifen although in the MCF-7 assay 6 was slightly less effective than 4-hydroxytamoxifen at 10(-6) and 10(-7) M. The compound 8 analogues to cis-4-hydroxytamoxifen antagonized the growth stimulation by estradiol of MCF-7 cell or rat uterus growth, and it is therefore an antiestrogen, but its potency was somewhat less, both as an antiestrogen and an estrogen, than reported
取代的8,9-二苯基-6,7-二氢-5H-苯并环庚烯6-8是(Z)-反-4-羟基他莫昔芬,(E)-顺他莫昔芬和(E)-顺式4-羟基他莫昔芬是由7-甲氧基-1-苯并亚砜合成的。通过共同的合成中间体分别制备羟基化合物6和8,从该中间体可以特异性地裂解全氟对甲苯基或甲基醚官能团。测定了化合物对细胞溶质和MCF-7全细胞中雌激素受体的结合亲和力,以及体外和体内大鼠子宫对MCF-7细胞的生长抑制作用。环状类似物5-7的内分泌学特性与他莫昔芬的相应衍生物的内分泌学特性相似,尽管在MCF-7分析中6在10(-6)和10(-7)M时比4-羟基他莫昔芬的有效性稍差。顺式-4-羟基他莫昔芬的化合物8类似物拮抗雌二醇对MCF-7细胞或大鼠子宫的生长刺激,因此它是抗雌激素药,但作为抗雌激素药和雌激素药,其效价均比报道的要低。顺式4-羟基他莫昔芬的作用是由于异构化为更有效的反式异构体而改变了后者的生化特性。奇怪的是