669719-70-4

ethyl 6-amino-3,4',4',6',8'-pentamethyl-2'-oxo-5',6'-dihydro-1H,4'H-spiro[pyrano[2,3-c]pyrazole-4,1'-pyrrolo[3,2,1-ij]quinoline]-5-carboxylate ethyl 6-amino-3,4',4',6',8'-pentamethyl-1,4,5',6'-tetrahydro-2'(1'H)-oxospiro(pyrano[2,3-c]pyrazole-4,1'[4'H]-pyrrolo[3,2,1-ij]quinoline)-5-carboxylate Spiro[pyrano[2,3-c]pyrazole-4(1H),1'(2'H)-[4H]pyrrolo[3,2,1-ij]quinoline]-5-carboxylic acid, 6-amino-5',6'-dihydro-3,4',4',6',8'-pentamethyl-2'-oxo-, ethyl ester