(20R)-25-hydroxy-2-methylene-vitamin D3
3-desoxy-1α-[(tert-butyldiphenylsilyl)oxy]-2-methylene-25-[(triethylsilyl)oxy]-vitamin D3
(20S)-3-desoxy-1α-[(tert-butyldiphenylsilyl)oxy]-2-methylene-25-[(triethylsilyl)oxy]-9,10-secocholesta-5(10),8-dien-6-yne
C50H76O2Si2
(20R)-3-desoxy-1α,25-dihydroxy-2-methylene-vitamin D3