InChI=1/C21H25N3O6/c1-14-20(24(28)29)17-7-8-19(27)18(13-22(9-11-25)10-12-26)21(17)23(14)15-3-5-16(30-2)6-4-15/h3-8,25-27H,9-13H2,1-2H3/p+1/fC21H26N3O6/h22H/q+1 6639F44E0F547CC7