Using O=c1[nH]c2c3ccccc3ncc2n1C1CCN(Cc2ccccc2)CC1 to produce O=c1[nH]c2c3ccccc3ncc2n1C1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.