Using COC(=O)CC(CCCCCCCCSC(C)=O)C(CCCCCCCCSC(C)=O)CC(=O)OC to produce OCCC(CCCCCCCCS)C(CCO)CCCCCCCCS, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.