Using Cc1[nH]c2c(c1C(=O)O)CCCC2=O, CCN(CC)CC(O)CN to produce CCN(CC)CC(O)CNC(=O)c1c(C)[nH]c2c1CCCC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.