(S)-a-fluoromethyltryptophan为一种色氨酸脱羧酶抑制剂，参考文献如下：

Williams B B, Van Benschoten A H, Cimermancic P, et al. Discovery and characterization of gut microbiota decarboxylases that can produce the neurotransmitter tryptamine[J]. Cell host & microbe, 2014, 16(4): 495-503.