Contains pattern

Hell All,

i am using contains pattern as below but i am getting erroor saying "CP" is not allowed here since it contains an invalid character or it is a keyword. (It might be possible to escape it using "!"

SELECT MBLNR

        BLDAT

        BKTXT

      MJAHR

  FROM MKPF INTO TABLE IT_MKPF1

   FOR ALL ENTRIES IN IT_MSEG1

   WHERE MBLNR = IT_MSEG1-MBLNR

      AND BKTXT CP '4900000922 Shop Rejection'.

Please help me how to use contain pattern in select query.

Thanks,

Taseer Ahamad