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:
Nov. 01, 2005
Filed:
Jul. 12, 2001
Vladimir Genukh Beylin, Ann Arbor, MI (US);
Richard Jungkyu Lee, Holland, MI (US);
Mark Eugene Marlatt, Grass Lake, MI (US);
Vladimir Genukh Beylin, Ann Arbor, MI (US);
Richard Jungkyu Lee, Holland, MI (US);
Mark Eugene Marlatt, Grass Lake, MI (US);
Warner-Lambert Company, Ann Arbor, MI (US);
Abstract
The present invention relates to a process for preparing 2-(pyridin-4-ylamino-pyrido [2,3-d]pyrimidine of Formula IIby reacting a 4-aminopyridine of the formulawith a 2-(4-imino-4H-pyridin-1-yl)-pyrido[2,3-d]pyrimidine of Formula Iin the presence of a base. It also relates to an alternative process for preparing a compound of Formula II by reacting the aminopyridine hereinabove within a unreactive organic solvent. It also relates to the compound of Formula III.