New estrogen receptor antagonists. 3,20-Dihydroxy-19-norpregna-1,3,5(10)-trienes: Synthesis, molecular modeling, and biological evaluation
作者:Yury V. Kuznetsov、Inna S. Levina、Alexander M. Scherbakov、Olga E. Andreeva、Irina V. Fedyushkina、Andrey S. Dmitrenok、Alexander S. Shashkov、Igor V. Zavarzin
DOI:10.1016/j.ejmech.2017.11.042
日期:2018.1
the latter with DIBAH immediately yielded 3,20-dihydroxy-16α,17α-methyleno-19-norpregna-1,3,5(10)-triene 13. The same procedures using 3-methoxy-19-norpregna-1,3,5(10),16-tetraen-20-one 5 produced corresponding 3,20-dihydroxy-16,17-19-norpregna-1,3,5(10)-triene 16 and 3,20-dihydroxy-19-norpregna-1,3,5(10),16-tetraene 17. All compounds were fully characterized by 1D and 2D NMR, HRMS, and X-ray diffraction
合成了新的雌激素受体 α (ERα) 拮抗剂 - 3,20-dihydroxy-19-norpregna-1,3,5(10)-trienes,在 16α,17α 位置含有一个额外的碳环 D'。研究了新化合物对 MCF-7 乳腺癌细胞和 ERα 活化的影响。所有研究的类固醇都是从雌酮甲醚开始合成的。含有六元环 D' 的化合物的支架是通过丁二烯与 3-甲氧基-19-norpregna-1,3,5(10),16-tetraen-20-one 5的狄尔斯-阿尔德反应构建的。伯 16α,17α-环己烯加合物7的氢化,然后是 3-去甲基化(通过 HBr-AcOH)和 20-氧代基团的还原(通过 LiAlH 4) 或由 DIBAH 一步得到目标单羟基和二羟基类固醇9 – 11。相同的 3-甲氧基-19-norpregna-1,3,5(10),16-tetraen-20-one 5的 Corey-Chaykovsky