InChI=1/C20H25NO2/c1-21-10-8-17-13-19(22-2)6-4-15(17)12-16-5-7-20(23-3)14-18(16)9-11-21/h4-7,13-14H,8-12H2,1-3H3/p+1/fC20H26NO2/h21H/q+1 054B19E021AC1615