InChI=1/C21H34N2O4/c1-14(2)8-9-16-6-5-7-17(16)23-12-15-10-18(25-3)21(19(11-15)26-4)27-13-20(22)24/h10-11,14,16-17,23H,5-9,12-13H2,1-4H3,(H2,22,24)/p+1/t16-,17-/m1/s1/fC21H35N2O4/h23H,22H2/q+1 274DA7E2343EC565