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:
Dec. 20, 1977
Filed:
Feb. 02, 1973
Robert W Fleming, Wyoming, OH (US);
Arthur D Sill, Greenhills, OH (US);
William L Albrecht, Cincinnati, OH (US);
Stephen W Horgan, Cincinnati, OH (US);
Richardson-Merrell Inc., Wilton, CT (US);
Abstract
The novel bis-basic ketones of fluorene and fluorenone of the present invention have antiviral activity when administered orally and parenterally. These compounds are represented by the following formula: ##STR1## wherein Z is oxygen or H.sub.2 ; each A is a straight or branched alkylene chain having from 1 to about 6 carbon atoms; and each Y is A. the group ##STR2## wherein R.sup.1 and R.sup.2 are individually hydrogen, (lower)alkyl having from 1 to about 6 carbon atoms, cycloalkyl having from 3 to 6 carbon atoms, alkenyl of from 3 to 6 carbon atoms and having the vinyl unsaturation in other than the 1-position of the alkenyl group; or B. the group ##STR3## WHEREIN N IS A WHOLE INTEGER FROM 4 TO 6, AND R.sup.3 is hydrogen, (lower)alkyl of 1 to about 4 carbon atoms, phenyl, or benzyl and can be linked to any one of the carbon atoms of the heterocyclic group; or C. the group ##STR4## wherein X is oxygen or NR.sup.4, and R.sup.4 is hydrogen or (lower)alkyl of from 1 to about 4 carbon atoms; or D. the group ##STR5## WHEREIN P IS A WHOLE INTEGER FROM 2 TO 3, AND M IS A WHOLE INTEGER FROM 1 TO 2; OR A PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALT OF SAID BASE. These new compounds may be prepared by several different methods which are described.