| abstract |
(57) [Summary] [Structure] General formula (I) (In the formula, R and R'are the same or different and are a lower alkyl group or a hydrogen atom, X is a halogen atom, and Y is a cyano group or a carbamoyl group.) -Halogenopyridine derivatives. [Effect] A general formula (I) which is a novel intermediate for producing a 2,4-dihydroxy-5-halogenopyridine derivative which is an inhibitor of 5-fluorouracil biodegradation enzyme under mild conditions and in a short step ). |