InChI=1S/C18H19ClN2O5/c19-13-7-11(9-14(20)17(23)24)3-6-16(13)26-18(25)15(21)8-10-1-4-12(22)5-2-10/h1-7,14-15,22H,8-9,20-21H2,(H,23,24)