15.alpha.,-Sulfonyloxy-12.beta.-hydroxypregnanes and process for

Details 15.alpha.,-Sulfonyloxy-12.beta.-hydroxypregnanes and process for 15.alpha.,-Sulfonyloxy-12.beta.-hydroxypregnanes and process for

1974-07-02

1976-02-17

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

26023957, 195 51R, C07J 500

Patent

active

039391876

ABSTRACT:
15.alpha.-Sulfonyl-12.beta.-hydroxypregnanes of the formula ##SPC1##
Wherein Ac is lower-acyl and R is alkyl, cycloalkyl, aralkyl or aryl, which are useful as intermediates for the production of digoxigenin, are produced by the selective sulfonic acid esterification of the corresponding 12.beta., 15.alpha.-dihydroxy steroid.

REFERENCES:
patent: 3639392 (1972-02-01), Fritsch et al.
patent: 3655643 (1972-04-01), Lehmann et al.

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