InChI=1/C18H21NO3/c1-11(2)19-9-15-16(21-10-19)8-7-13-12-5-3-4-6-14(12)18(20)22-17(13)15/h7-8,11H,3-6,9-10H2,1-2H3/p+1/fC18H22NO3/h19H/q+1 75EAA958B7E53688