3-Hydroxy-8,13-dihydro-7H-indolo[2',3':3,4]pyrido[2,1-b]quinazolin-5-one 3-Hydroxy-8,13-dihydro-indolo[2',3':3,4]pyrido[2,1-b]quinazolin-5(7H)-one 3-Hydroxyrutaecarpine 3-hydroxy-8,13-dihydroindolo[2',3':3,4]pyrido[2,1-b]quinazolin-5(7H)-one InChI=1/C18H13N3O2/c22-10-5-6-15-13(9-10)18(23)21-8-7-12-11-3-1-2-4-14(11)19-16(12)17(21)20-15/h1-6,9,19,22H,7-8H indolo[2',3':3,4]pyrido[2,1-b]quinazolin-5(7H)-one, 8,13-dihydro-3-hydroxy-