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:
Aug. 04, 1998
Filed:
Oct. 23, 1996
Daniel T Chu, Santa Clara, CA (US);
David Allen Degoey, Kenosha, WI (US);
David J Grampovnik, Waukegan, IL (US);
Larry Lewis Klein, Lake Forest, IL (US);
Paul A Lartey, Wadsworth, IL (US);
Christina Louise Leone, Kenosha, WI (US);
Sheela Albert Thomas, Vernon Hills, IN;
Ming Clinton Yeung, Grayslake, IL (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
A process for preparing a compound having the formula: ##STR1## wherein R is selected from the group consisting of C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 -C.sub.6 -cycloalkylmethyl, C.sub.1 -C.sub.6 -alkyl, allyl and 2-methoxyethyl, by reacting: ##STR2## under defined conditions with subsequent stepwise reactions of the respective intermediate compounds with a malonic acid diester, POCl.sub.3, and by heating the final intermediate in a high boiling solvent.