Using O=C(N[C@@H](CSc1ccccc1)CC(=O)N1CCOCC1)OCc1ccccc1 to produce N[C@@H](CSc1ccccc1)CC(=O)N1CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.