Using CCCCc1ncc(C=O)n1Cc1ccccc1Cl, COC(=O)CCc1cccs1 to produce CCCCc1ncc(C(O)C(Cc2cccs2)C(=O)OC)n1Cc1ccccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.