Using c1ccc(CN(Cc2ccccc2)c2nc3c(c4c2ncn4Cc2ccccc2)CCCC3)cc1 to produce Nc1nc2c(c3c1ncn3Cc1ccccc1)CCCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.