Using O=C1CCN(c2cccc3cccnc23)CC1, c1cc(N2CCNCC2)c2cc[nH]c2c1 to produce c1cnc2c(N3CCC(N4CCN(c5cccc6[nH]ccc56)CC4)CC3)cccc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.