Method for producing nicotinic acid derivative or salt thereof

Details Method for producing nicotinic acid derivative or salt thereof Method for producing nicotinic acid derivative or salt thereof

2006-04-20

2011-10-18

Andres, Janet (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S290000

Reexamination Certificate

active

08039633

ABSTRACT:
To provide a method for producing a specific nicotinic acid derivative or a salt thereof. A method for producing a nicotinic acid derivative represented by the formula (I):wherein each of X1and X2which are independent of each other, is a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a haloalkyl group or a haloalkoxy group; R is an alkyl group; and Hal is a chlorine atom or a bromine atom; or a salt thereof, is provided which comprises reacting a compound represented by the formula (II):is wherein X1, X2and R are as defined above, or a salt thereof, with a halogenating agent.

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