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Showing structure for C[Si](C)(C)OC(=O)C1=CC(O)=C(O)C(OC2=C(O)C(O)=C(O)C=C2C(=O)OCC2=CC(O)=C(OC3OC(CO)C(O)C(O)C3O)C(O)=C2)=C1