Using Nc1cc(-c2ccccc2)n[nH]1, COC(=O)CC(C(C)=O)C(=O)OC to produce COC(=O)Cc1c(C)[nH]c2cc(-c3ccccc3)nn2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.