InChI=1S/C21H25N3O3/c1-12(2)5-8-16-15(14-7-6-13(25)10-17(14)22-16)11-18-21(27)24-9-3-4-19(24)20(26)23-18/h5-7,10,18-19,22,25H,3-4,8-9,11H2,1-2H3,(H,23,26)/t18-,19-/m0/s1