A novel 2,2-di-substituted 19-norvitamin D derivative. It is a compound represented by the general formula (I) wherein R1 and R2 are the same or different and each represents hydroxy and A represents hydrogen, or an unsubstituted linear or branched alkyl.
一种新型的2,2-二取代的19-去氢
维生素D衍
生物。它是一种由通式(I)表示的化合物,其中R1和R2相同或不同,每个代表羟基,A代表氢,或未取代的线性或支链烷基。