Using CCOC(=O)c1sc(-c2ccc(Cl)nc2)nc1C, C1COCCN1 to produce Cc1nc(-c2ccc(Cl)nc2)sc1C(=O)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.