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US 4,738,957 AGranted
Estriol esters
AssigneeSchering Corporation
InventorsHenry Laurent, Dieter Bittler, Sybille Beier, Walter Elger
Life of this patent
Estimating the term…
Abstract
Estriol esters of Formula I ##STR1## wherein R is, in each case, the residue of an aliphatic monocarboxylic acid of 3-10 carbon atoms, surpass estriol in strength and duration of estrogen activity.
Claims18
An estriol ester of the formula ##STR4## wherein R is, in each case, alkanoyl of 3-10 carbon atoms.
Dependencies are inferred from the claim text.