InChI=1/C15H18N2O2/c16-14(18)12-8-4-5-10-9-17(15(19)13(10)12)11-6-2-1-3-7-11/h4-5,8,11H,1-3,6-7,9H2,(H2,16,18)/f/h16H2 04D10054F4B6FAC1