The pyrrolo[2,3-(d) under bar]pyrimidine anticancer agent LY231514 (MTA, 1)
has been prepared utilizing, as a key sequence, Michael condensation of 2,
6-diamino-4(3 (H) under bar)-pyrimidinone (as the donor) with the nitro ole
fin 8, followed by a Nef reaction that leads to the annulated pyrrole ring
of 1. (C) 1999 Elsevier Science Ltd. All rights reserved.