InChI=1S/C23H28N2O4/c1-14-11-15(2)13-17(12-14)22(27)25(23(4,5)6)24-21(26)18-7-8-19-20(16(18)3)29-10-9-28-19/h7-8,11-13H,9-10H2,1-6H3,(H,24,26)