Using O=Cc1cccc(OCCCOc2c(Cl)cc(OCC=C(Cl)Cl)cc2Cl)c1, CCON to produce CCON=Cc1cccc(OCCCOc2c(Cl)cc(OCC=C(Cl)Cl)cc2Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.