Using COC(=O)/C=C/c1cc(C=Cc2csc(NC(C)=O)n2)cs1 to produce COC(=O)CCc1cc(CCc2csc(NC(C)=O)n2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.