Set wildcard redirect for day and name permalink to post-name urls

What do I write in Smartcrawl redirect to point urls like
http://mysite.com/2012/01/my-post/ to this http://mysite.com/my-post/
I like to set an wildcard url. I need to redirect more than 400 url so it will be helpful if we could add a regular expression or wildcard redirect so if any of the urls with day and name structure is loaded it redirects to the post-name url.