InChI=1/C16H23N3O/c1-12-3-2-9-19(10-8-12)15-7-4-13(11-17-15)16(20)18-14-5-6-14/h4,7,11-12,14H,2-3,5-6,8-10H2,1H3,(H,18,20)/t12-/m0/s1/f/h18H 0F5B5864ED03BB31