Recently, Dr. Fujiwara and H. watanabe found that when thiamine is mixed with the extract of the common garlic (Allzum sativum), its thiochrome reaction, a reaction characteristic of thiamine, becomes negative. This phenomenon seems not to be caused by the decomposition of thiamine, because the reaction mixture not only regenerates thiamine by treating with a reducing agent such as cysteine or sodium hyposulfite, but also still possesses an antineuritic activity similar to that of thiamine.Therefore, it is a$sumed that in this reaction a new thiamine-like compound is produced, which was named "Allithiamine" by Dr . Fujiwara.Studies have been made on the isolation and chemical structure of allithiamine in close cooperation with Dr. Fujiwara, the result of which is described here.

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