InChI=1S/C22H28NO3/c1-3-23(4-2)16-15-20(17-23)26-21(24)22(25,18-11-7-5-8-12-18)19-13-9-6-10-14-19/h5-14,20,25H,3-4,15-17H2,1-2H3/q+1