Using Nc1cc(-c2c[nH]c3ccccc23)n[nH]1, O=C(O)CCCN1CCCCC1 to produce O=C(CCCN1CCCCC1)Nc1cc(-c2c[nH]c3ccccc23)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.