Showing structure for CC(C)(C)[Si](C)(C)OC1C(OC2=CC=C(C=CCC#CC3=CC=C(OC4OC(CO)C(O)C(O[Si](C)(C)C(C)(C)C)C4O)C(O)=C3)C=C2O)OC(CO)C(O)C1O