| abstract |
PROBLEM TO BE SOLVED To provide a novel amino acid organic compound which can be used as a labeled precursor compound of a radioactive halogen-labeled amino acid compound including [ 18 F] FACBC, and in which no methanol remains in the produced radiohalogen-labeled amino acid compound. (Solution) A compound represented by the following formula. (Wherein n is 0 or an integer of 1 to 4, R 1 is an ethyl substituent, a 1-propyl substituent, or an isopropyl substituent, X is a halogen substituent or a group represented by -OR 2 , R 2 is a straight- A haloalkylsulfonic acid substituent having 1 to 10 carbon atoms, a trialkylstannyl substituent having 3 to 12 carbon atoms, a fluorosulfonic acid substituent or an aromatic sulfonic acid substituent, and R 3 is a protecting group. |