  The $DN$ interaction is studied in close analogy to the meson-exchange $\bar
KN$ potential of the Juelich group using SU(4) symmetry constraints. The model
generates the $\Lambda_c$(2595) resonance dynamically as a $DN$ quasi-bound
state. Results for $DN$ scattering lengths and cross sections are presented and
compared with predictions based on the Weinberg-Tomozawa term. Some features of
the $\Lambda_c$(2595) resonance are also discussed emphasizing the role of the
near-by $\pi\Sigma_c$ threshold.
