InChI=1/C18H31N5O3/c1-20(2)17(26)22-12-10-21(11-13-22)14-23-15(24)18(19-16(23)25)8-6-4-3-5-7-9-18/h3-14H2,1-2H3,(H,19,25)/f/h19H 256D14168D97EF80