InChI=1S/C19H25NO3/c1-14(13-16(21)15-7-5-12-20-15)8-9-17-19(4,23-17)11-6-10-18(2,3)22/h5-10,12-13,17,20,22H,11H2,1-4H3/b9-8+,10-6+,14-13-/t17-,19+/m1/s1