InChI=1/C21H26N2O4/c1-13-5-4-6-14(9-13)10-21(2,3)22-11-17(25)15-7-8-16(24)19-20(15)27-12-18(26)23-19/h4-9,17,22,24-25H,10-12H2,1-3H3,(H,23,26)/p+1/t17-/m0/s1/fC21H27N2O4/h22-23H/q+1 23FCCD4BFE623C4B