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:
Oct. 13, 1998
Filed:
Dec. 22, 1997
Applicant:
Inventors:
Thomas G Archibald, Fair Oaks, CA (US);
James C Barnard, Shingle Springs, CA (US);
Der-Shing Huang, Folsom, CA (US);
Assignee:
Aerojet-General Corporation, Rancho Cordova, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564405 ; 564360 ; 568328 ; 585642 ; 585656 ;
Abstract
Alkyl-substituted polyarenes of the formula ##STR1## in which R is alkyl and Ar.sub.res is an aryl residue, are prepared from aryl ketones by reaction of the latter with 1-cyclohexenyloxytrimethylsilane in the presence of a Friedel-Crafts catalyst. When R is methyl and Ar.sub.res is a naphthyl residue, the reaction serves as a step in a reaction scheme leading to crisnatol mesylate, a pharmaceutical useful in the treatment of brain cancer.