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:
Jul. 28, 2015
Filed:
May. 24, 2013
Ampac Fine Chemicals Llc, Rancho Cordova, CA (US);
Brian Morgan, San Diego, CA (US);
Olivier Dapremont, Cameron Park, CA (US);
Patrick Berget, Sacramento, CA (US);
Ali Suleman, Folsom, CA (US);
William Dubay, Folsom, CA (US);
Jeffrey D. Butler, Folsom, CA (US);
AMPAC Fine Chemicals LLC, Rancho Cordova, CA (US);
Abstract
Compounds and methods for preparing substituted 3-(1-amino-2-methylpentane-3-yl)phenyl compounds from an isomerically pure starting material are described. In particular, methods of preparing a 3-(1-(dimethylamino)-2-methylpentane-3-yl)phenol as a substantially optically pure (R,R) stereoisomer are described. Using a method of the present invention, only the (R,R) and (S,S) stereoisomers of the target compound are produced, increasing the yield and stereoselectivity of the desired (R,R) stereoisomer.