[racket] useage of regexp-replace*

hello~
I am making comment removing function
but
when str contains
#| comment 1 |#
(define values1 1)
#| comment 2 |#
(define values2 2)
#| comment 3 |#

the following code delete all of my str
 (regexp-replace* "\\#\\|(.*)\\|\\#" str " ")

could somebody let me know how to remove only these comments ?
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