How to convert a char to a property

[Cecil Westerhof]

I have the following property list:
    (defvar dcbl-bbdb-user-defined-fields (list :L "mail-alias"
                                                :M "mailer"
                                                :P "playlist"
                                                :s "subjects"
                                                :t "type"
                                                :w "website")
      "User defined fields in the bbdb with parameter to insert into buffer")

With (getf dcbl-bbdb-user-defined-fields :M) I get "mailer".

But I want to work parameter driven. So for example I have:
     (setq parameters "MLst")
     (setq current-char (string-to-char parameters))

The variable current-char now contains 77. How could I use
current-char to retrieve "mailer"?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof