The novel 10β-thiiranyl-4-estrene-3,17-diones (5) and (6) have been synthesized by the action of triphenylphosphine sulphide–picric acid on oxirane precursors and show potent inhibition of placental aromatase; the (19R)-isomer (5) is 75 times more effective than the (19S)-isomer (6).
新型的10β-
噻喃基-4-雌烯-3,17-二酮(5)和(6)是通过
三苯基膦硫化物-
苦味酸对
环氧乙烷前体的作用合成的,并显示出对胎盘芳香酶的有效抑制作用。(19 R)-异构体(5)的效率是(19 S)-异构体(6)的75倍。