The invention provides a method of producing 20-methyl vitamin D3 compounds of formula (I). The method includes allylic and olefin oxidation, de-carbonylation, carbonyl reduction, fluoride substitution, epoxide deoxygenation, and Wittig-type couplings.
本发明提供了一种制备式(I)的20-甲基
维生素D3化合物的方法。该方法包括烯丙基和烯烃氧化、去羰基化、羰基还原、
氟代替、环氧去氧化和威廉逊偶联反应。