Bill Tindall, E.Tn.
An impressive solution to making a bow front drawer. A challenge for those that like a joinery challenge. But it should become apparent that an 18th century cabinet maker would have starved his family making bow fronts this way. They are about 1/3 greater labor even made the traditional (efficient) way.
For those needing a bow front to hold your socks, and plenty of other stuff to do, consider how bow fronts were traditionally done. Veneer some secondary wood thick enough to keep the drawer back orthogonal to the sides until the dovetails are cut. Or, here in the land of plenty when it comes to lumber, buy some 12/4 walnut. Note: Veneered, the drawer will look better because the arc will not be cutting across the grain.