Showing structure for C=CC1=C(C)C2=CC3=C(C=C)C(C)=C(C=C4N=C(C=C5C(CCC(=O)O)=C(C)C(=CC1=N2)N5[Si](C)(C)C(C)(C)C)C(CCC(=O)O)=C4C)[NH]3