The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1989
Filed:
Jul. 07, 1987
Franco Buzzetti, Monza, IT;
Natale Barbugian, Milan, IT;
Paolo Lombardi, Milan, IT;
Enrico di Salle, Milan, IT;
Farmitalia Carlo Erba S.r.l., Milan, IT;
Abstract
The invention relates to new 6- or 7-methylenandrosta-1,4-diene-3,17-diones of the following formula ##STR1## wherein R is hydrogen or fluorine; R.sub.1 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sub.2 is hydrogen or halogen; one of R.sub.3 and R.sub.4 is .dbd.CH.sub.2 and the other is hydrogen or C.sub.1 -C.sub.4 alkyl, and when R.sub.3 is .dbd.CH.sub.2, at least one of R and R.sub.4 is other than hydrogen; and the symbol ##STR2## represents a double bond and the symbol ##STR3## represents a single bond when R.sub.3 is .dbd.CH.sub.2 or the symbol ##STR4## represents a single bond and the symbol ##STR5## represents a double bond when R.sub.4 is .dbd.CH.sub.2, which are useful in therapy, in particular as anti-cancer agents.