Using C#CCN(Cc1ccc2ncn(COC(=O)C(C)(C)C)c(=O)c2c1)c1ccc(C(C)=O)cc1 to produce C#CCN(Cc1ccc2nc[nH]c(=O)c2c1)c1ccc(C(C)=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.