Back to results
US 4,536,575 AGranted
2-Amino-4(3H)-oxopyrido[2,3-d]pyrimidino
AssigneeSouthern Research Institute
InventorsCarroll G. Temple, John A. Montgomery, Robert D. Elliott
Life of this patent
Estimating the term…
Abstract
There are disclosed novel intermediates useful in the preparation of pyrido[2,3-d]pyrimidines having the following structure: ##STR1## wherein R is CH.sub.3, CH.sub.3 CH.sub.2, CH.sub.3 CH.sub.2 CH.sub.2, CH.sub.2 .dbd.CHCH.sub.2 or CH.tbd.CCH.sub.2. The intermediate has the formula: ##STR2## wherein Z is CH.sub.2 OH or CH.sub.2 Br.
Claims1
Intermediates useful in the production of 5-deaza analogs of folic acid, N.sup.10 -substituted folic acid, aminopterin, and N.sup.10 -substituted aminopterin consisting of compounds having the structures:
- ##STR15## wherein Z is CH.sub.2 OH or CH.sub.2 Br.
Dependencies are inferred from the claim text.