Paaren H E, Hamer D E, Schnoes H K, DeLuca H F
Proc Natl Acad Sci U S A. 1978 May;75(5):2080-1. doi: 10.1073/pnas.75.5.2080.
An efficient procedure for the direct C-1 hydroxylation of vitamin D compounds has been developed. The method involves conversion of vitamin D3 tosylates to 3,5-cyclovitamin D derivatives, allylic oxidation with selenium dioxide, and acid-catalyzed solvolysis to the 1 alpha-hydroxyvitamin D analogs. When applied to vitamin D3,25-hydroxyvitamin D3, and vitamin D2, this sequence give the corresponding 1alpha-hydroxylated derivatives in 10-15% yield.
已开发出一种用于维生素D化合物直接C-1羟基化的有效方法。该方法包括将维生素D3甲苯磺酸盐转化为3,5-环维生素D衍生物,用二氧化硒进行烯丙基氧化,以及酸催化溶剂解为1α-羟基维生素D类似物。当应用于维生素D3、25-羟基维生素D3和维生素D2时,该序列以10-15%的产率得到相应的1α-羟基化衍生物。