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Showing structure for C=CC1=C(C)/C(=C/C2=C(C)C(CCC(=O)O)=C(CC3=C(CCC(=O)O)C(C)=C(/C=C4/C(C=C)=C(C)C(=O)N4[Si](C)(C)C(C)(C)C)[NH]3)[NH]2)N([Si](C)(C)C(C)(C)C)C1=O