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Tanabe Seiyaku Co Ltd
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Tanabe Seiyaku Co Ltd
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Application filed by Tanabe Seiyaku Co LtdfiledCriticalTanabe Seiyaku Co Ltd
Priority to JP899876ApriorityCriticalpatent/JPS5291856A/en
Publication of JPS5291856ApublicationCriticalpatent/JPS5291856A/en
PURPOSE: 2-Pyrrolicone derivatives, useful as intermediates of 8-azaprostanoic acid derivatives, are prepared by the reduction of the ester group at the 5-position of 2-pyrrolidone diester to the hydroxymethyl group.