Journal of the Chemical Society. Perkin transactions I p. 1809 - 1816 (1994)
Update date:2022-09-26
Topics:
Kobayashi, Norihiro
Kitahori, Junichi
Mano, Hidetoshi
Shimada, Kazutake
The measurement of serum/plasma levels of 1α,25-dihydroxyvitamin D3 1 a is important for the diagnosis influencing vitamin D metabolism.To obtain antibodies to the metabolite 1a which are highly specific and useful for development of immunoassays, two novel haptenic derivatives, 11α-(3-carboxypropanoyloxy)-1α,25-dihydroxyvitamin D3 2a and 11α-(4-carboxybutanoyloxy)-1α,25-dihydroxyvitamin D3 2b were synthesized each in 19 steps from a suitably protected derivative (3) of 11α,25-dihydroxycholesterol.
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