Showing structure for CC(C)(C)[Si](C)(C)OC1=C(O)C(C2=C(O)C(O[Si](C)(C)C(C)(C)C)=C3OC(=O)C4=C5C(=C(O)C(O)=C4)OC(=O)C2=C35)=C2C(=O)OC(C(O)C(O)C(O)CO)=CC2=C1O