InChI=1S/C21H20O15/c22-6-3-7(23)11(8(24)4-6)12(27)9(25)1-5-2-10(26)13(28)15(30)18(5)35-21-17(32)14(29)16(31)19(36-21)20(33)34/h2-4,14,16-17,19,21-24,26,28-32H,1H2,(H,33,34)