InChI=1S/C16H21N3O5/c1-8(2)16(4,14(21)22)19-12(17)11-7-9(3)5-6-10(11)13(20)18-15(23)24/h5-8H,1-4H3,(H2,17,19)(H,18,20)(H,21,22)(H,23,24)