Using c1cc2c(s1)CCCCN2, O=C(Cl)c1ccc(-c2ccccc2)cc1 to produce O=C(c1ccc(-c2ccccc2)cc1)N1CCCCc2sccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.