Compound 3

From the following article

Glyoxylate carboligase lacks the canonical active site glutamate of thiamine-dependent enzymes

Alexander Kaplun, Elad Binshtein, Maria Vyazmensky, Andrea Steinmetz, Ze'ev Barak, David M Chipman, Kai Tittmann & Boaz Shaanan

Nature Chemical Biology 4, 113-118 (2008) Published online: 6 January 2008

doi:10.1038/nchembio.62