1152413-95-0Relevant articles and documents
Five-membered 2,3-dioxo heterocycles: LXI. Reaction of 3-aroyl-1H- pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones with α-enamino esters. Crystalline and molecular structure of methyl 11-benzoyl-2-o-hydroxyphenyl-3,4, 10-trioxo-6,9-diphenyl-7-oxa-2,9-diazatr
Racheva,Aliev,Maslivets
experimental part, p. 1184 - 1188 (2009/09/29)
3-Aroyl-1H-pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones react with methyl 4-aryl-2-arylamino-4-oxobut-2-enoate to give substituted methyl 7-aryl-4,9-bis(aroyl)-3-hydroxy-1-(2-hydroxyphenyl)-2,6-dioxo-1,7-diazaspiro[4. 4]nona-3,8-diene-8-carboxylates which