Dimethylformamide → 2-benzyl-6-[(3S,4R)-3-chloro-4-methoxypyrrolidine-1-yl]-3-iodopyridine

関与物質

反応条件

反応手順

A mixture of 553 g of 2-benzyl-6-((3R,4R)-3-(3-nitrobenzenesulfonyl)oxy-4-methoxypyrrolidine-1-yl]-3-iodopyridine, 79 mg of lithium chloride and 5.0 ml of N,N-dimethylformamide was heated under stirring at 75° C. for 9 hours. After cooling as it was, water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic phase was washed with water and brine, and the solvent was removed. The residue was subjected to NH-silica gel (Fuji Silicia) column chromatography and eluted with hexane/ethyl acetate (10:1) and then with hexane/ethyl acetate (5:1), to give 391 mg of the target compound.

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