Using CO[C@@H]1CN(Cc2nc3ccccc3[nH]2)CC[C@@H]1N to produce CO[C@@H]1CN(Cc2nc3c([nH]2)CCCC3)CC[C@@H]1N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.