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Showing structure for C[Si](C)(C)OC1=C(C(=O)/C=C/C2=CC=C(O)C=C2)C(=O)C(O[Si](C)(C)C)(C2OC(CO)C(O)C(O)C2O[Si](C)(C)C)C(O)=C1C(CC(=O)O)C1=CC=C(O)C=C1