Using COc1ccc([C@H]2CC[C@@H](C(=O)O)N2C(=O)CCS)cc1OC to produce COc1ccc([C@@H]2CC[C@@H]3C(=O)SCCC(=O)N32)cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.