Using O=C(O)CC1CCc2ccccc21, CCOC(=O)[C@@H]1CSCN1 to produce CCOC(=O)[C@H]1NCSC1C(=O)CC1CCc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.