Using CCOC(C)=O, O=C(O)C[C@@H]1CC[C@H](NC(=O)Cc2cccs2)B(O)O1 to produce CCOC(=O)C[C@@H]1CC[C@H](NC(=O)Cc2cccs2)B(O)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.