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. 02, 1985
Filed:
Aug. 31, 1982
Carroll G Temple, Birmingham, AL (US);
John A Montgomery, Birmingham, AL (US);
Robert D Elliott, Birmingham, AL (US);
Southern Research Institute, Birmingham, AL (US);
Abstract
There is disclosed a novel intermediate useful in the preparation of pyrido [2,3-d] pyrimidines, which includes N-[4-[(2-amino-4(3H)-oxopyrido[2,3-d]pyrimidin-6-yl)methylamino]benzoyl]-L -glutamic acid (5-deazafolic acid), N-[4-[[2-amino-4(3H)-oxopyrido[2,3-d]-pyrimidin-6-yl)methyl]methylamino]be nzoyl]-L-glutamic acid (5-deaza-N.sup.10 -methylfolic acid), N-(4-[(2,4-diaminopyrido[2,3-d]pyrimidin-6-yl)methylamino]benzoyl]-L-gluta mic acid (5-deazaaminopterin), and N-[4-[[2,4-diaminopyrido[2,3-d]pyrimidin-6-yl)methyl]methylamino]benzoyl]- L-glutamic acid (5-deazamethotrexate). This intermediate is the compound 2,4-diamino-6-(hydroxymethyl)pyrido-[2,3-d]pyrimidine.