Using NN, COC(=O)c1cccc2[nH]cc(C(=O)CCc3ccccc3)c12 to produce O=C1NN=C(CCc2ccccc2)c2c[nH]c3cccc1c23, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.