Showing structure for C[Si](C)(C)OC(=O)C(CCC(=O)O)NC(=O)C1=CC=C(N(CC2=CN=C3N=C(N([Si](C)(C)C)[Si](C)(C)C)N=C(N([Si](C)(C)C)[Si](C)(C)C)C3=N2)[Si](C)(C)C)C=C1