Using COCOc1c(OC)cc(CCCCC(=O)O)cc1OC, SC1=NCCS1 to produce COCOc1c(OC)cc(CCCCC(=O)N2CCSC2=S)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.