2-(4-{(3R,3aS,7aS)-7-[2-[(3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-3-isopropyl-octahydro-inden-3a-ylmethoxy}-1,1-diethyl-but-2-ynyloxy)-tetrahydro-pyran 在
氢氟酸 作用下,
以
水 、
乙酸乙酯 、
乙腈 为溶剂,
反应 0.67h,
以69%的产率得到1alpha-hydroxy-18-(4-hydroxy-4-ethyl-2-hexynyloxy)-23,24,25,26,27-pentanorvitamin D3/1alpha-hydroxy-18-(4-hydroxy-4-ethyl-2-hexynyloxy)-23,24,25,26,27-pentanorcholecalciferol