Showing structure for C[Si](C)(C)NC1=NC(=O)C2=C(NCC([C@H](O)[C@@H](COP(=O)(O[Si](C)(C)C)OP(=O)(O)OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)O[Si](C)(C)C)=N2)[NH]1