Using N=C(N)N1CCN(Cc2ccccc2)CC1, CCN1CCC(=O)C(=COC)C1=O to produce CCN1CCc2nc(N3CCN(Cc4ccccc4)CC3)ncc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.