Synthesis of quinazoline analogs of isofolic acid

Abstract
Four quinazoline analogs of isofolic acid were synthesized including 5-methyl-5,8-deazaisofolic acid (8a), 5,8-deazaisofolic acid (8c), as well as their 4-NH2 counterparts 8b and 8d. None of these showed significant activity against L1210 leukemia in mice at dose levels where amethopterin provided significant prolongation in survival.

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