InChI=1S/C22H25NO3/c24-21-22(18-10-4-1-5-11-18,19-12-6-2-7-13-19)26-20(25-21)14-17-23-15-8-3-9-16-23/h1-2,4-7,10-13,20H,3,8-9,14-17H2