Using Cc1ccc2c(OCCN3CCNCC3)cccc2n1, O=Cc1cccc2nc[nH]c12 to produce Cc1ccc2c(OCCN3CCN(Cc4cccc5nc[nH]c45)CC3)cccc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.