Latent inhibition of dihydrofolate reductase by a spirocyclopropyl pteridine
Abstract
2-Amino-7,8-dihydro-6-hydroxymethyl-7-spirocyclopropylpteridin-4(3H)-one is shown to be the first mechanism-based inhibitor of dihydrofolate reductase whereas 2,4-diamino-5-(4-chlorophenyl)-6-cyclopropyl-pyrimidine is a typical competitive inhibitor.