4-(2-Amino-Ethoxy)-2-[(3-Hydroxy-2-Methyl-5-Phosphonooxymethyl-Pyridin-4-Ylmethyl)-Amino]-but-3-Enoic Acid
4-(2-amino-ethoxy)-2-[(3-hydroxy-2-methyl-5-phosphonooxymethyl-pyridin-4-ylmethyl)-amino]-but-3-enoic acid