InChI=1S/C23H21ClN2O4/c1-13(2)29-23(27)22-16(12-28-3)20-18(11-25-22)26-17-5-4-6-19(21(17)20)30-15-9-7-14(24)8-10-15/h4-11,13,26H,12H2,1-3H3