Using C=Cc1ccc2c(c1CCCN)OC(CC)N2C(=O)OC(C)(C)C, ClCCl to produce C=Cc1ccc2c(c1CCCN)OC(CC)N2C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.