METHOD FOR PRODUCING PROLINE COMPOUND

摘要

Iligtinti-A proline compound represented by formula (1), or a salt thereof, which is useful as an intermediate for the production of a medicinal or agrochemical agent or the like, can be produced by a method comprising the following steps A to D:[Step A]:a step of reacting a pyrrolidinone compound with a reducing agent, (W+) lzs H 4 , A I - (0 IR 3) m' in the presence of abase; [Step B]: a step of reacting a pyrrolidinol compound with a cyanating agent;[Step C]:a step of hydrolyzing or alcoholyzing the cyanopyrrolidine compound, and[Step D]:a step of substituting R2 in the protected proline compound by a hydrogen atom.IIIIIIIIIIIIIIIIII*G00002*