InChI=1S/C21H21N3O7/c25-12-6-11-17(18(19(12)28)24(29)30)22-20-16-10-5-14-21(11,20)2-3-23(14)8-9(10)1-4-31-13(16)7-15(26)27/h1,6,10,13-14,16,20,22H,2-5,7-8H2,(H,26,27)