Using COC(=O)c1cn(-c2ccc(O)cc2C)c(C2CCN(C(=O)OCc3ccccc3)CC2)cc1=O to produce COC(=O)c1cn(-c2ccc(O)cc2C)c(C2CCNCC2)cc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.