Using CCO, N[C@@H](CCC(=O)N[C@@H](CS)C(=O)O)C(=O)O to produce CCOC(=O)[C@H](CS)NC(=O)CC[C@H](N)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.