Using O=c1c2cc(F)c(O)cc2oc2cc(O)c(F)cc12, COCCOCCl to produce COCCOCOc1cc2oc3cc(OCOCCOC)c(F)cc3c(=O)c2cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.