Tetrahedron p. 9283 - 9294 (1992)
Update date:2022-08-04
Topics:
Hanekamp
Rookhuizen
Bos
Brandsma
A new synthesis of 25-hydroxydihydrotachysterol2 is described. The hydroxylated side-chain is constructed stereoselectively using a chiral Wittig reagent. The A-ring synthon is introduced utilising the Wittig-Horner method as developed by Lythgoe et al. The preparation of the metabolite is carried out in 18 steps.
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