Problem with ^TO_

I have this rule that I created (thanks again to everyone who helped me 
with it over the past few weeks) that allows me to filter mail into 
folders based on the email address:
:0
* ^TO_ \/(_dot_)*(_at_)subdomain\(_dot_)domain\(_dot_)com
* MATCH ?? ()\/[^(_at_)]+
{
   snr_String  = $MATCH
   snr_Search  = "."
   snr_Replace = "-"
   INCLUDERC = inc/snr_fast.inc
   :0
   .$snr_Return/
}

Basically, if I get mail to amazon(_dot_)com(_at_)subdomain(_dot_)domain(_dot_)com, it gets put 
into a folder called "amazon-com".
I now discovered a problem.  If the email address contains a name in it, 
the calculated folder name is screwed up.  For instance, I recently got 
an email with this To: line:
To: Timur Tabi <amazon(_dot_)com(_at_)subdomain(_dot_)domain(_dot_)com>

With the above rule, procmail tried to create a folder called "Timur 
Tabi <amazon.com", which obviously didn't work.
I guess what I need is a way to strip out everything to left of and 
including the < if found.  Can anyone tell me how to do that?

--
Timur Tabi
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