InChI=1S/C14H17N3O6/c18-12(2-1-3-13(19)16-9-14(20)21)15-8-10-4-6-11(7-5-10)17(22)23/h4-7H,1-3,8-9H2,(H,15,18)(H,16,19)(H,20,21)