Using [OH-], CCOC(=O)N1CCC2C(c3ccc(Cl)c(Cl)c3)CCCC21 to produce OC1(c2ccc(Cl)c(Cl)c2)CCCC2NCCC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.