Synthesis and cytotoxic activity of some 17-picolyl and 17-picolinylidene androstane derivatives
作者:Evgenija A. Djurendić、Jovana J. Ajduković、Marija N. Sakač、János J. Csanádi、Vesna V. Kojić、Gordana M. Bogdanović、Katarina M. Penov Gaši
DOI:10.1016/j.ejmech.2012.06.030
日期:2012.8
elimination from 7 or 9 affords AB conjugated derivatives 8 and 10. Oppenauer oxidation of 1 and 2 yields 4-en-3-one derivatives 11 and 12, which, with H2O2 in 4 M NaOH, affords 4α,5α and 4β,5β-epoxides 13, 14, 16 and 17. New 4-methoxy-3-keto derivatives 15 and 18 were obtained from 13 and 14, or, with methanol in 4 M NaOH, from 16 and 17. Reduction of 11 with NaBH4 gives 22, which was then acetylated
新的17吡啶甲基和17- picolinylidene雄甾烷衍生物,3 - 10,15,18,19,22和23,合成从17α吡啶甲基-雄甾-5-烯3β开始,17β二醇(1)和17( Z)-吡啶甲基亚烷基-androst-5-en-3β-ol(2)。的反应1与米氯过氧酸给出5α,6α环氧N-氧化物衍生物3,或,用琼斯试剂,3,6-二酮衍生物4 ; 而17α-picolyl-androst-5-en-3β,4α,17β-triol(5)或3β,4β,17β-triol(6)衍生物可从1在二恶烷中使用SeO 2。从7或9除去碱催化的甲苯磺酰基,得到AB共轭衍生物8和10。的奥盆诺尔氧化1倍2的产率-4-烯-3-酮衍生物11和12,其中,用H 2 ö 2在4M的NaOH,得到4α,5α和4β,5β环氧化物13,14,16和17。从13和14获得了新的4-甲氧基-3-酮衍生物15和18,或在4 M