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EP0046292A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Substituted caprylolactam derivatives as antihypertensives, process for preparing and pharmaceutical composition comprising them

Assignee: Merck and Co Inc
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Filing: 1981-08-17
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Granted: —
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Expires: 2001-08-17
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Abstract

Abstract The invention relates to caprylolactam derivatives of the formula: wherein R and R 3 are hydroxy, lower alkoxy, lower alkenoxy, aryloxy, arloweralkoxy; hydrogen, alkyl of from 1 to 12 carbon atoms which include branched and cyclic and unsaturated alkyl groups, substituted loweralkyl wherein the substituent(s) can be halo, lower alkoxy, hydroxy, aryloxy, amino, loweralkylamino, aminoloweralkylthio, aminoloweralkoxy, diloweralkylamino, acylamino, arylamino, guanidino, phthalimido, mercapto, loweralkylthio, arylthio, carboxy, carboxamido or carboloweralkoxy, arloweralkyl, arloweralkenyl, heteroarlower alkyl or heteroarlower alkenyl, substituted arloweralkyl, or substituted heteroarlower alkyl, or substituted heteroarlower alkenyl, wherein the aryl or heteroaryl substituents are halo, dihalo, lower alkyl, hydroxy, lower alkoxy, amino, aminomethyl, phenyloxy, acylamino, diloweralkylamino, loweralkylamino, carboxyl, haloloweralkyl, acyl or aroyl; arloweralkyl or heteroarloweralkyl substituted on the alkyl portion by amino, hydroxyl or acylamino; R 2 and R are hydrogen or lower alkyl; and the pharmaceutically acceptable salts thereof and a process for preparing them. Those compounds are useful as angiotensin converting enzyme inhibitors and as antihypertensives.

Inventors

  • 👤 Elbert E. Harris
  • 👤 Arthur A. Patchett
  • 👤 Eugene D. Thorsett

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-29 21:45
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/08; C07K5/0821; C07K5/02; C07K5/022; C07K5/0222; A; A61; A61K; A61K38/00

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 204 words
A process for preparing compounds of the formula: wherein R and R 3 are the same or different and are hydroxy, lower alkoxy, lower akenoxy, aryloxy, arloweralkoxy; R 1 is hydrogen, alkyl of from 1 to 12 carbon atoms which include branched and cyclic and unsaturated alkyl groups, substituted loweralkyl wherein the substituent can be halo, lower alkoxy, hydroxy,. aryloxy, amino, loweralkylamino, aminoloweralkylthio, aminoloweralkoxy, diloweralkylamino, acylamino, arylamino, guanidino, phthalimido, mercapto, loweralkylthio, arylthio, carboxy, carboxamido or carboloweralkoxy, arloweralkyl, arloweralkenyl, heteroarlower alkyl or heteroarlower alkenyl, substituted arloweralkyl, or substituted heteroarlower alkyl, or substituted heteroarlower alkenyl , wherein the substituents are halo, dihalo, lower alkyl, hydroxyl, lower alkoxy, amino, aminomethyl, phenyloxy, acylamino, diloweralkylamino, loweralkylamino, carboxyl, haloloweralkyl, acyl or aroyl; arloweralkyl or heteroarloweralkyl substituted on the alkyl portion by amino, hydroxyl, or acylamino; and, R 2 and R 4 are hydrogen or lower alkyl; which comprises reductively alkylating a compound of the formula: with a compound of the formula: followed by removal of protecting groups, if necessary, to yield the desired product and, if desired, isolating the biologically more active isomer by chromatography, fractional crystallization, or resolution with an appropriate optically active acid or base and, if desired, preparing a salt of the desired product by conventional means.

References Cited (Backward Citations)

DD148770A5 Cited
EP0017309A1 Cited
EP0026640A2 Cited

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