InChI=1/C21H23NO4/c1-2-10-22-13-16(23)14-25-17-8-9-18-19(24)12-20(26-21(18)11-17)15-6-4-3-5-7-15/h3-9,11-12,16,22-23H,2,10,13-14H2,1H3/p+1/t16-/m0/s1/fC21H24NO4/h22H/q+1 2213B4C2A240F4E6