Using COC(=O)Nc1cn2c(Oc3ccc(NC(C)=O)cc3)cccc2n1 to produce COC(=O)Nc1cn2c(Oc3ccc(N)cc3)cccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.