Using C[Mg+], COc1c(C(=O)N(C)OC)nc2n(c1=O)CCOC2(C)C to produce COc1c(C(C)=O)nc2n(c1=O)CCOC2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.