InChI=1/C18H27N5O/c1-2-14-11-15(21-17(20-14)23-7-3-4-8-23)22-9-5-18(6-10-22)12-16(24)19-13-18/h11H,2-10,12-13H2,1H3,(H,19,24)/f/h19H 52A0235A81CB117D