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18-甲基-△~(9(11))-雌甾酚酮-3-甲醚(3)用盐酸吡啶处理时,除在C_3-位发生脱甲基外,C_9(11)-双键同时也转移至C_(8(9))-位置,生成了18-甲基-△~(8(9))-雌甾酚酮(4)。产物结构经波谱和化学方法证明。
(3) When treated with pyridine hydrochloride, C_9 (11) - double bond except 18-methyl-Δ9 (11) -estradiol-3-methyl ether At the same time, it also transferred to C_ (8 (9)) - and 18-methyl-Δ ~ (8 (9)) -estradiol (4) was generated. The product structure is proved by spectroscopy and chemical methods.