it was found that the electron withdrawing nitrile moiety of beta-aminopropionitrile ( bapn ) , a naturally occurring syncatalytic inhibitor of lysyl oxidase , can be replaced by chlorine , bromine , or the nitro function to yield 2-haloamines or nitroethylamine compounds which also act as mechanism-based irreversible inhibitors of this enzyme .
C0028131
nitrile
C0002578
beta-aminopropionitrile