Using O=c1ccn(C2CCN(Cc3ccccc3)CC2)nc1-c1ccnn1-c1ccccc1 to produce O=c1ccn(C2CCNCC2)nc1-c1ccnn1-c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.