Synthesis of a 1α,25-dihydroxyvitamin D2 analog (3), in which the double bond in the side-chain is replaced by an amide group, is described. Condensation of a carboxylic acid (8) with an amine (6) gave an amide (9), which in turn led to 3 via several steps. The analog (3) could not bind to the chick cytosol vitamin D receptor, which indicated the importance of the hydrophobic interaction of the C(22)-C(23) double bond in 1α,25- dihydroxyvitamin D2 (2) with the vitamin D receptor.
CITATION STYLE
Konno, K., Ojima, K., Hayashi, T., Tanabe, M., & Takayama, H. (1997). Synthesis and biological activity of a 1α,25-dihydroxyvitamin D2 analog bearing an amide group in the side-chain. Chemical and Pharmaceutical Bulletin, 45(1), 185–188. https://doi.org/10.1248/cpb.45.185
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