We will be in town for a convention Memorial Day weekend and need to take our physician speakers out for a late dinner on Saturday night (8:30-ish). We need fine food and wine, one of your "chow-ish" restaurants, but it's important that it not be too loud. No chains please. The docs will be expecting something nice.
Not too far from the convention center as well. A short cab ride at most. Having never been to Philly (I'm embarrassed to say), I don't know the area.
Thank you in advance for all recs.