How to expand irule using switch or logical or in selection process?

The proposed solution did not work, so I started over with my rule and incorporated the easy switch for the hostnames. 
when CLIENT_ACCEPTED {event HTTP_REQUEST enable}
when HTTP_REQUEST {
  set MY_HOST [string tolower [HTTP::host]]
  set MY_URI [string tolower [HTTP::uri]]

  if {$MY_URI starts_with "/abcd"} { 
   if {not ($MY_URI contains "/abcdpayment.web/") and not ($MY_URI contains "/abcdpaymentprocessing.web/")} {
    switch $MY_HOST {
                "m3.corpname.com" {HTTP::redirect http://a1.m3.corpname.com$MY_URI}
                "intra.m3.corpname.com" {HTTP::redirect http://intra.a1.m3.corpname.com$MY_URI}
                "intra.m3-dc1.corpname.com" {HTTP::redirect http://intra.a1.m3-dc1.corpname.com$MY_URI}
                "intra.m3-dc2msp.corpname.com" {HTTP::redirect http://intra.a1.m3-dc2.corpname.com$MY_URI}
                "intra.m3-dc3.corpname.com" {HTTP::redirect http://intra.a1.m3-dc3.corpname.com$MY_URI}   
            }
        }
  event HTTP_REQUEST disable
  TCP::close
  }
}
when HTTP_RESPONSE {event HTTP_REQUEST enable}