Using COCCNC1=C(C(=O)OC)C(=O)C(=Cc2c[nH]c3ncccc23)O1 to produce COCCNC1=CC(=O)C(=Cc2c[nH]c3ncccc23)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.