In a large bowl, whisk together the olive oil, red wine vinegar, oregano, garlic, salt, and pepper.
Add the chicken pieces, prunes, olives, and capers to the bowl and toss until evenly coated.
Cover the bowl and marinate in the refrigerator for a minimum of 4 hours.
Preheat the oven to 375°F (190°C).
Transfer the chicken and the marinade into a 9x13 inch baking dish, ensuring the chicken pieces are in a single layer.
Pour the white wine around the chicken and sprinkle the brown sugar substitute evenly over the meat.
Bake for 40 to 45 minutes until the chicken reaches an internal temperature of 165°F (74°C).
Remove from oven and garnish with fresh parsley before serving.