InChI=1/C16H22N2O2/c19-15(10-17-14-4-2-1-3-5-14)11-20-18-16(12-6-7-12)13-8-9-13/h1-5,12-13,15,17,19H,6-11H2/t15-/m0/s1 EA56FD4D8ADA17FA