I screwed up a link with a '\' and not a '/'

Now g thinks that:
w w w.site.com/info_details%5Cdataview.php?listingID=77

is a valid link

while the real valid link is:
w w w.site.com/info_details/dataview.php?listingID=77

How can I do a redirect for a \ or %5C

How can I do a redirect or rewrite for this the listing id can be any number from 1-90.

Thanks ian

 

Try with external rewrite map. I think is not other solution.