InChI=1S/C17H21N5O5/c1-20-15-14(16(26)21(2)17(20)27)22(9-19-15)6-5-18-8-13(25)10-3-4-11(23)12(24)7-10/h3-4,7,9,13,18,23-25H,5-6,8H2,1-2H3