Aromatase and Dual Aromatase-Steroid Sulfatase Inhibitors from the Letrozole and Vorozole Templates
作者:Paul M. Wood、L. W. Lawrence Woo、Mark P. Thomas、Mary F. Mahon、Atul Purohit、Barry V. L. Potter
DOI:10.1002/cmdc.201100145
日期:2011.8.1
Concurrent inhibition of aromatase and steroid sulfatase (STS) may provide a more effective treatment for hormone‐dependent breast cancer than monotherapy against individual enzymes, and several dual aromatase–sulfatase inhibitors (DASIs) have been reported. Three aromatase inhibitors with sub‐nanomolar potency, better than the benchmark agent letrozole, were designed. To further explore the DASI concept
同时抑制芳香化酶和类固醇硫酸酯酶 (STS) 可能比针对单个酶的单一疗法更有效地治疗激素依赖性乳腺癌,并且已经报道了几种双重芳香化酶-硫酸酯酶抑制剂 (DASI)。设计了三种亚纳摩尔效力的芳香酶抑制剂,优于基准药物来曲唑。为了进一步探索 DASI 概念,在 JEG-3 细胞中设计了一系列新的来曲唑衍生的氨基磺酸盐和一种基于沃洛唑的氨基磺酸盐,并对其进行了生物学评估,以揭示结构-活性关系。在非手性和外消旋化合物中,2-溴-4-(2-(4-氰基苯基)-2-(1 H -1,2,4-三唑-1-基)乙基)苯基氨基磺酸酯是最有效的DASI(芳香化酶: IC 50 =0.87 n M ; STS: IC50 = 593 n M )。该化合物的酚前体的对映异构体通过手性 HPLC 分离,并通过 X 射线晶体学确定它们的绝对构型。在转化为相应的氨基磺酸盐后,发现S -(+)-对映异构体最有效地抑制芳香酶和硫酸酯酶(芳香酶:IC