Acetonitrile → Methyl (3r,4s)-1-[(z)-1-(methylthio)-2-nitrovinyl]-4-[(3r)-3-phenylpyrrolidin-1-yl]carbonylpiperidine-3-carboxylate

関与物質

反応条件

反応手順

To a stirred solution of (3R,4S)-4-((R)-3-phenyl-pyrrolidine-1-carbonyl)-piperidine-3-carboxylic acid methyl ester (3.10E2 mg, 0.000980 mol) in anhydrous acetonitrile (9.8 mL, 0.19 mol) at rt was added triethylamine (274 uL, 0.00196 mol) and 1,1-bis(methylthio)-2-nitroethylene (248 mg, 0.00147 mol). The reaction mixture was heated to reflux (oil bath temperature: 85° C.) for 19 h. The reaction mixture was concentrated in vacuo. The residue was purified by Combiflash with 40-95% EtOAc/Hex to give the product as a yellow viscous oil (227 mg, 53% in yield). MS (ESI): (M+H)+=434.1.

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