- PROCESS FOR THE PREPARATION OF AN INTERMEDIATE OF CILAZAPRIL
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The present invention relates to a process for the preparation of optically pure (S,S)-6-t-butoxycarbonyl-hexahydro-1-pyridazinylcarbonyl-1,3-dioxo-2-isoindolebutyric acid, an intermediate for the preparation of cilazapril.
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- A NOVEL PROCESS FOR THE PREPARATION OF CILAZAPRIL
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Cilazapril is prepared in good yield using ethyl R-2-(nitro or halo substituted benzene sulfonyloxy)-4-phenyl butyrate. Thus, (1S,9S)-t-butyl octahydro-10-oxo-9-amino-6H-pyridazino[1,2-a][1,2]diazepine-1-carboxylate is reacted with ethyl R-2-(4-nitro benz
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- ENANTIOMERICALLY PURE CILAZAPRIL,PROCESS FOR PREPARATION
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The invention relates to enantiomerically pure cilazapril and a process for preparing enantiomerically pure cilazapril. The invention also relates to pharmaceutical compositions that include the enantiomerically pure cilazapril and use of said composition
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- The Design and Synthesis of the Angiotensin Converting Enzyme Inhibitor Cilazapril and Related Bicyclic Compounds
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The postulated binding functions for the active site of Angiotensin Converting Enzyme (A.C.E.), derived in an earlier study, have made possible the design of improved inhibitors.Consequently, (1S,9S)-9-octahydro-10-oxo-6H-pyridazodiazepine-1-carboxylic acid (Cilazapril), and related compounds, have been synthesized.They are very active inhibitors of A.C.E. and are highly potent antihypertensives in vivo.
- Attwood, Michael R.,Hassall, Cedric H.,Kroehn, Antonin,Lawton, Geoffrey,Redshaw, Sally
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p. 1011 - 1020
(2007/10/02)
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