A compound represented by general formula (I) and an intermediate therefor, and a process for synthesizing the both, wherein R1 represents optionally hydroxylated C1-C10 alkyl; R2 represents hydrogen or hydroxy; and R3 represents hydrogen or hydroxy. It is a vitamin D derivative substituted by a sulfur atom at the 22-position and has a potent keratinocyte growth inhibitor effect.
一种由通式(I)代表的化合物及其中间体,以及合成二者的工艺,其中 R1 代表任选羟基化的 C1-C10 烷基;R2 代表氢或羟基;R3 代表氢或羟基。 它是一种在 22 位被
硫原子取代的
维生素 D 衍
生物,具有强效的角朊细胞生长抑制作用。