InChI=1/C19H23N3O5/c23-18(20(11-13-6-7-13)14-4-2-1-3-5-14)12-21-16-9-8-15(22(25)26)10-17(16)27-19(21)24/h8-10,13-14H,1-7,11-12H2 7B11E3A9B94D4FD4