InChI=1/C21H33N3O2/c1-12(2)20-23-18(26-24-20)11-21(3,4)10-17(25)22-19-15-6-13-5-14(8-15)9-16(19)7-13/h12-16,19H,5-11H2,1-4H3,(H,22,25)/f/h22H B921B23B8F45F7EE