InChI=1/C21H26N2O4/c1-25-20-7-6-15(12-21(20)26-2)8-10-22-13-16(24)14-27-19-5-3-4-18-17(19)9-11-23-18/h3-7,9,11-12,16,22-24H,8,10,13-14H2,1-2H3/p+1/t16-/m0/s1/fC21H27N2O4/h22H/q+1 1E5C4E680D1C2CBF