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