Showing structure for C[Si](C)(C)OC(=O)[C@H](CCCCN1C=CC=C2N=C(N(CCC[C@@H](C(=O)O[Si](C)(C)C)N([Si](C)(C)C)[Si](C)(C)C)[Si](C)(C)C)N=C21)N([Si](C)(C)C)[Si](C)(C)C