Using Nc1ccccn1, COC(=O)c1c[nH]c2c1-c1ncccc1CN(Cc1ccccc1)C2 to produce O=C(Nc1ccccn1)c1c[nH]c2c1-c1ncccc1CN(Cc1ccccc1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.