Reaction of Pyrrolo[2,1-a][1,4]oxazine-1,6,7-triones with Carbocyclic Enamino Ketones. Synthesis of Spiro[indole-3,2′-pyrroles]

Abstract

8-Aroyl-3,4-dihydro-1H-pyrrolo[2,1-a][1,4]oxazine-1,6,7-triones reacted with 3-benzylamino-5,5-dimethylcyclohex-2-en-1-one to give 3′-aroyl-1-benzyl-4′-hydroxy-1′-(2-hydroxyethyl)-6,6-dimethyl-6,7-dihydrospiro[ indole-3,2′-pyrrole]-2,4,5′(1H,1′H,5H)-triones.