InChI=1S/C19H29N5O2/c1-12(2)10-15(20)19(26)24-9-3-4-16(24)18(25)23-11-13-5-7-14(8-6-13)17(21)22/h5-8,12,15-16H,3-4,9-11,20H2,1-2H3,(H3,21,22)(H,23,25)/t15-,16+/m1/s1