InChI=1/C20H25N3O4/c1-15-4-2-12-22(14-15)13-3-11-21-20(24)19-10-9-18(27-19)16-5-7-17(8-6-16)23(25)26/h5-10,15H,2-4,11-14H2,1H3,(H,21,24)/p+1/t15-/m1/s1/fC20H26N3O4/h21-22H/q+1 1D3A757CFBFE2E34