Using CCCNC1CCc2ncsc2C1, O=CCCCNC(=O)c1ccccc1 to produce CCCN(CCCCNC(=O)c1ccccc1)C1CCc2ncsc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.