Cyclohex-2-enyl acetamides
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United States of America Patent
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Mar 26, 1996
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N/A
app pub date -
Mar 30, 1995
filing date -
Nov 19, 1993
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Abstract
The present invention relates to a novel enantiospecific process for preparing (S)-1- 2(S)-(1,3-dihydro-1,3-dioxo-isoindo-2-yl)-1-oxo-3-phenylpropyl!-1,2,3,4-tetrahydro-2-pyridine-carboxylic acid methyl ester which is a useful intermediate in the preparation of 4S- 4.alpha., 7.alpha.(R*), 12b.beta.!!-7- (1-oxo-2(S)-thio-3-phenylpropyl)amino!-1,2,3,4,6,7,8,12b-octahydro-6-oxo-pyrido 2,1-a! 2!benzazepine-4-carboxylic acid and 4S- 4.alpha., 7.alpha.(R*), 12b.beta.!!-7- (1-oxo-2(S)-acetylthio-3-phenylpropyl)amino!-1,2,3,4,6,7,8,12b-octahydro-6-oxo-pyrido 2,1-a! 2!benzazepine-4-carboxylic acid and pharmaceutically acceptable salts thereof which is useful as an inhibitor of enkephalinase and angiotensin converting enzyme and to novel intermediates thereof.
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