Bis(4-hydroxyphenyl)[2-(phenoxysulfonyl)phenyl]methane: isolation and structure elucidation of a novel estrogen from commercial preparations of phenol red (phenolsulfonphthalein)
作者:Rajeshwar D. Bindal、John A. Katzenellenbogen
DOI:10.1021/jm00118a020
日期:1988.10
Commercial preparations of phenolsulfonphthalein (Phenol Red), a pH indicator dye widely added to cell culture media, have weak estrogenic activity that can be accounted for by a minor lipophilic impurity (ca. 0.002%). We have isolated this impurity, determined its structure to be bis(4-hydroxyphenyl)[2-(phenoxysulfonyl)phenyl]methane, and synthesized it from phenolsulfonphthalein. This compound binds
商业上广泛添加到细胞培养基中的pH指示剂酚磺酞(酚红)的雌激素活性较弱,这可由少量亲脂性杂质引起(约0.002%)。我们已经分离出该杂质,确定其结构为双(4-羟苯基)[2-(苯氧基磺酰基)苯基]甲烷,并由酚磺酞合成。该化合物以雌二醇的50%亲和力与雌激素受体结合。它在体外刺激雌激素反应性乳腺癌细胞的增殖并增加孕激素受体的含量,并且在体内刺激大鼠子宫的增重,但在这些试验中显示出的效力仅为雌二醇的0.1-0.2%。我们建议如何在酚磺酞的制备过程中产生这种新型雌激素。