InChI=1/C21H22O6/c1-11(2)6-7-12-16(25-4)10-13(22)17-19(23)18-14(27-20(12)17)8-9-15(24-3)21(18)26-5/h6,8-10,22H,7H2,1-5H3 985803CB971822CC