folate analogs ( methotrexate , aminopterin and formylaminopterin ) as well as sh-group inhibitors [ p-hydroxymercuribenzoate , 5,5 ' -dithiobis ( 2-nitrobenzoic acid ) , or n-ethylmaleimide ] inhibit dhfr .
C0025677
methotrexate
C0002583
aminopterin