InChI=1S/C18H17Cl2NO4/c1-18(2,17(23)24)25-15-5-3-11(4-6-15)7-16(22)21-14-9-12(19)8-13(20)10-14/h3-6,8-10H,7H2,1-2H3,(H,21,22)(H,23,24)