InChI=1S/C22H25NO3/c1-4-17(2)16-26-22(24)14-9-18-5-10-20(11-6-18)23-15-19-7-12-21(25-3)13-8-19/h5-15,17H,4,16H2,1-3H3/b14-9+,23-15+/t17-/m0/s1