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Paper | Special issue | Vol 82, No. 1, 2010, pp.631-639
Published online, 18th June, 2010
DOI: 10.3987/COM-10-S(E)35
Reductive Cyclization of 3-Cyanomethyloxindoles to Hexahydro-2-oxopyrrolo[2,3-b]indoles with Lithium Aluminum Hydride

Masashi Shinada, Yoshiyuki Aihara, Satoshi Takiguchi, Naoko Ban, Kazuhiro Higuchi, and Tomomi Kawasaki*

*Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan

Abstract

Reduction of 3-cyanomethyloxindoles with lithium aluminum hydride at low temperature proceeded smoothly with cyclization to afford hexahydro-2-oxopyrrolo[2,3-b]indoles.