InChI=1/C17H22N2O3/c1-6-22-16(20)14-12(5)18-17(21)19-15(14)13-10(3)7-9(2)8-11(13)4/h7-8,15H,6H2,1-5H3,(H2,18,19,21)/t15-/m0/s1/f/h18-19H A3742C594770CDBC