K. Nilsson et al., SYNTHESIS AND BIOLOGICAL EVALUATION OF 18-SUBSTITUTED ANALOGS OF 1-ALPHA,25-DIHYDROXYVITAMIN-D3, Bioorganic & medicinal chemistry letters, 3(9), 1993, pp. 1855-1858
The synthesis and biological evaluation of 1alpha,25-dihydroxy-13-viny
l-18-norvitamin D3, 1alpha,25-dihydroxy-18-methylvitamin D3 and 1alpha
,18,25-trihydroxyvitamin D3 are described.