Dehydroglycine

Dehydroglycine is the organic compound with the formula HNCHCO2H. This rarely observed species is invoked as the product of oxidation (dehydrogenation) of glycine by glycine oxidase (ThiO), which is a step in the biosynthesis of thiamin. It is also invoked as a product of the radical SAM-induced fragmentation of tyrosine. It is an imino acid.