Using COC(=O)c1ccc(OCCCCC2Cc3c(OC)c(OC)c(OC)c(OC)c3C2=O)cc1 to produce COC(=O)c1ccc(OCCCCC2Cc3c(OC)c(OC)c(OC)c(OC)c3C2O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.