Showing structure for COC1=CC2=C(C3=C1C1=C(C(=O)CC1)C(=O)O3)C1C(O2)O[C@@H](SCC(N=C(O)CCC(N[Si](C)(C)C)C(=O)O[Si](C)(C)C)C(O)=NCC(=O)O[Si](C)(C)C)[C@@H]1O