1,193,752. 11# - Acyloxyestr - 4 - ene - 3#,17# - diols and derivatives. G. D. SEARLE & CO. 2 Feb., 1968 [16 Feb., 1967], No. 5356/68. Heading C2U. Novel steriods of the formula (wherein R and RSP1/SP are each H or alkanoyl; RSP11/SP is alkanoyl; and X is H or alkyl but is H when RSP1/SP is alkanoyl; and the alkyl and alkanoyl radicals each contain less than 8 carbon atoms) are prepared by acylation of steriods of the formula (wherein B is CO, CH(#-OH), CH(#-O- alkanoyl) or C(α-alkyl)(#-OH)) followed by reduction to the corresponding 3#-ols (with concomitant reduction of the 17-keto group, if present, to the 17#-OH group) and, when required, acylation of these.
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