DERIVATIVES OF VITAMIN D Russian patent published in 1998 - IPC

FIELD: organic chemistry, vitamins. SUBSTANCE: invention relates to derivatives of vitamin D of the general formula (I) where X - H, OH; R¹ and R² are similar or different C₁-C₆-alkyl, possibly, substituted with fluorine atoms; Q - a single bond or group (CH₂)_n where n = 0, 1, 2 or 3 being OH-groups can be protected and their splitting off occurs in vivo, or their diastereomers. Compounds show antiinflammatory and immunomodulating action and strong inducing effect with respect to differentiation and inhibition of some cells proliferation. Synthesized compounds can be used in medicine. EFFECT: improved method of synthesis, enhanced effectiveness of compounds. 5 cl, 4 tbl