Showing structure for C[Si](C)(C)OC1=CC2=C3C(=C1O)OC(=O)C1=C(C4=C(O[Si](C)(C)C)C(O)=C5OC(=O)C6=C7C(=C(O)C(O[Si](C)(C)C)=C6)OC(=O)C4=C57)C(O[Si](C)(C)C)=C(O)C(=C13)OC2=O