InChI=1S/C21H29ClO4/c1-14(2)7-6-12-25-20(23)17-8-4-5-9-18(17)21(24)26-19-11-10-16(22)13-15(19)3/h10-11,13-14,17-18H,4-9,12H2,1-3H3