InChI=1/C18H27NO2/c1-12-9-14-16(20)13(11-19(5)6)7-8-21-17(14)15(10-12)18(2,3)4/h9-10,13H,7-8,11H2,1-6H3/p+1/t13-/m0/s1/fC18H28NO2/h19H/q+1 81629171ED54AE55