Diastereomeric 24, 25-dihydroxyvitamin D2 (I) was synthesized from ergosterol (II) through an efficient route and successfully separated into the (24R)-and (24S)-isomers by high-performance liquid chromatography (HPLC). The absolute configurations of the isomers were determined by co-chromatography with the authentic respective specimens.
通过高效路线从
麦角甾醇(II)合成了非对映异构体 24,25-二羟基
维生素 D2(I),并通过高效
液相色谱法(HPLC)成功地将其分离为(24R)-和(24S)-异构体。异构体的绝对构型是通过与各自的真品标本共色谱法确定的。