Synthesis of 19-hydroxylated analogues of androstenedione and testosterone carrying the cyclopropane ring in position 4β,5β is described. The starting allylic alcohol XIII was prepared by standard reactions from the epoxide I and transformed by Simmons-Smith methylenation to the cyclopropano derivative XXI. Hydrolyses and oxidations afforded the desired analogues XXIII and XXV.
描述了合成19-羟基雄烯二酮和睾酮的环丙烷环在4β,5β位置的类似物。起始的烯丙醇XIII通过标准反应从环氧化物I制备,并通过Simmons-Smith亚甲基化转化为环丙烷衍生物XXI。水解和氧化得到了期望的类似物XXIII和XXV。