Using O=C1COc2ccc(N3CC(NC(=O)OCc4ccccc4)CC3=O)nc2N1 to produce NC1CC(=O)N(c2ccc3c(n2)NC(=O)CO3)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.