.htaccess redirect up one level

I have modified our WordPress website structure slightly, and end up with 404 errors on pages like these

http://www.feature-fire.co.uk/products-2/feed/?product_tag=barbas
http://www.feature-fire.co.uk/products-2/feed/?product_cat=stoves-multifuel
http://www.feature-fire.co.uk/products-2/feed/?product_cat=type-fires

Tried the following redirect:

RedirectMatch 301 ^/products-2/feed/.*$ http://www.feature-fire.co.uk/products-2/

, i.e. back to /products-2/ page, but not working.

Can anyone help me on this one?