InChI=1/C16H21N5O/c22-16(18-11-15-5-7-19-20-15)17-8-10-21-9-6-13-3-1-2-4-14(13)12-21/h1-5,7H,6,8-12H2,(H,19,20)(H2,17,18,22)/f/h17-18,20H 8DD00B021ABF92BE