InChI=1/C16H32N2O3/c1-3-5-9-18(10-6-4-2)15(20)13-17-16(14-19)7-11-21-12-8-16/h17,19H,3-14H2,1-2H3/p+1/fC16H33N2O3/h17H/q+1 720301065413CFEC