Try CameraRaw as filter first it allow drastically lower shadows area.
Grow Shadows and Blacks sliders up to 80-90%
Reduce Contast a little bit (about -5-10%)
But be carefully, and not cleanup so much details 
Try CameraRaw as filter first it allow drastically lower shadows area.
Grow Shadows and Blacks sliders up to 80-90%
Reduce Contast a little bit (about -5-10%)
But be carefully, and not cleanup so much details