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:
Mar. 23, 1976
Filed:
Jun. 15, 1973
Irving Shemano, Cincinnati, OH (US);
Richardson-Merrell Inc., Wilton, CT (US);
Abstract
Bis-basic ester derivatives of the following general formula are useful in the treatment of conditions of delayed hypersensitivity. ##EQU1## wherein [W] represents an aromatic polycyclic nucleus selected from fluoranthene, fluorene, fluoren-9-ol, fluoren-9-one, carbazole, or N-(lower)alkyl carbazole; X represents oxygen or sulfur; A represents a straight or branched alkylene chain of from 2 to 6 carbon atoms; and each of R.sup.1 and R.sup.2 is hydrogen, straight or branched lower alkyl of from 1 to 4 carbon atoms, or alkenyl of from 3 to 6 carbon atoms having the vinyl unsaturation in other than the 1-position; and pharmaceutically useful acid addition salts thereof.