Process for the stereospecific preparation of 24(R),25- and 24(S

Details Process for the stereospecific preparation of 24(R),25- and 24(S Process for the stereospecific preparation of 24(R),25- and 24(S

1986-12-22

1988-07-19

Schenkman, Leonard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07J 900

Patent

active

047583827

ABSTRACT:
A novel process for the stereospecific preparation of a 24(R),25- and 24(S),25-dihydroxycholecalciferol. Also provided are novel intermediates used in the above process, being 22-p-toluenesulfonyl derivatives of 23,24,25,26,27-pentanorcholecalciferol and of 24(R)- and 24(S),25-dihydroxycholecalciferol.

REFERENCES:
patent: 3715374 (1973-02-01), DeLuca
patent: 4344888 (1982-08-01), Takayama et al.
patent: 4442093 (1984-04-01), Maeda et al.

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