(3R,4S,5R)-3,5-bis(tert-butyldimethylsilyloxy)-4-[2-(imidazol-1-yl)ethyl]oct-1-en-7-yne

1α,25-dihydroxy-2α-[2-(2H-tetrazol-2-yl)ethyl]vitamin D3

1α,25-dihydroxy-2α-[2-(1H-tetrazol-1-yl)ethyl]vitamin D3

1α,25-dihydroxy-2α-[2-(1,2,4-triazol-2-yl)ethyl]vitamin D3

1α,25-dihydroxy-2α-[2-(2H-1,2,3-triazol-2-yl)ethyl]vitamin D3