GB949729A - Substituted-piperidine carboxylic acid amide salts and their preparation - Google Patents

Substituted-piperidine carboxylic acid amide salts and their preparation

Info

Publication number
GB949729A
GB949729A GB38223/61A GB3822361A GB949729A GB 949729 A GB949729 A GB 949729A GB 38223/61 A GB38223/61 A GB 38223/61A GB 3822361 A GB3822361 A GB 3822361A GB 949729 A GB949729 A GB 949729A
Authority
GB
United Kingdom
Prior art keywords
acid
compound
reacting
ethyl
carboxylic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB38223/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saab Bofors AB
Original Assignee
Bofors AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bofors AB filed Critical Bofors AB
Publication of GB949729A publication Critical patent/GB949729A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D211/00Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/06Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
    • C07D211/36Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D211/60Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrogenated Pyridines (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

The invention comprises acid-addition salts of compounds of the formula: <FORM:0949729/C2/1> (in which one of R1 and R2 is hydrogen and the other is methyl or ethyl, and R3, R4, R5, R6 and R7 are hydrogen atoms or methyl or ethyl radicals, the total number of carbon atoms in these radicals not exceeding four) and their preparation by (1) condensing the appropriate piperidine -2- carboxylic acid or the anhydride or an ester or halide thereof with the appropriate aniline compound or with the corresponding isocyanate; or (2) catalytically hydrogenating the corresponding pyridine -2- carboxylic acid anilide; or (3) reacting an ester of the appropriate piperidine -2- carboxylic acid or the corresponding pyridine compound with an organo magnesium halide compound of the appropriate aniline compound and, if necessary, hydrogenating the product; or (4) reacting 2-chloro -6-amino-caproic acid chloride, substituted in the 5- or 6-position with the substituent R1 or R2, with the appropriate aniline compound and ring-closing the product with a strong base; or (5) nitrosating a compound of the formula: <FORM:0949729/C2/2> (wherein R8 is an alkyl radical), reducing the product and reacting with an alkylene dihalide to give a compound of the formula: <FORM:0949729/C2/3> (wherein X is a halogen atom) and ring closing this with concomitant removal of the ester group in the presence of a mineral acid; or (6) reacting the appropriate pyridine -2- carboxylic acid with the appropriate aniline compound to produce the amine salt of the acid, heating the salt and treating with a dehydrating agent, and hydrogenating the product; and then converting the free base, if isolated, into the acid-addition salt. Detailed examples are given, salts with mineral acids and sulphamic, glycollic, citric, malonic, acetic, benzoic and ascorbic acids being described or referred to. 5-Ethyl-pipecolinic acid chloride is prepared by hydrogenating 5-ethyl-picolinic acid hydrochloride to give 5-ethyl-pipecolinic acid hydrochloride and reacting this with phosphorus pentachloride. The amide salts of the invention, which are anaesthetics, may be made up into injection solutions. Specifications 775,750,800,565 and 800,670 are referred to.
GB38223/61A 1960-11-15 1961-10-25 Substituted-piperidine carboxylic acid amide salts and their preparation Expired GB949729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1096760 1960-11-15

Publications (1)

Publication Number Publication Date
GB949729A true GB949729A (en) 1964-02-19

Family

ID=20293137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38223/61A Expired GB949729A (en) 1960-11-15 1961-10-25 Substituted-piperidine carboxylic acid amide salts and their preparation

Country Status (2)

Country Link
FR (1) FR1599M (en)
GB (1) GB949729A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695576A (en) * 1984-07-09 1987-09-22 Astra Lake Medel Aktiebolag L-N-n-propylpipecolic acid-2,6-xylidide
US4870086A (en) * 1986-01-03 1989-09-26 Astra Lakemedel Aktiebolag Optically pure compound and a process for its preparation
US4904673A (en) * 1988-01-14 1990-02-27 Dr. Karl Thomae, Gmbh Agent for treating bradycardia and bradyarrhythmia
EP0514341A1 (en) * 1991-05-17 1992-11-19 Sandoz Ltd. Novel heterocylic anilides for weed control
WO2010084516A1 (en) * 2009-01-23 2010-07-29 Jubilant Organosys Limited Process for producing optically active n-alkyl-piperidine-2-carboxanilide
CN104003930A (en) * 2014-06-13 2014-08-27 山东阿如拉药物研究开发有限公司 Method for preparing hydrochloric acid ropivacaine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4695576A (en) * 1984-07-09 1987-09-22 Astra Lake Medel Aktiebolag L-N-n-propylpipecolic acid-2,6-xylidide
US4870086A (en) * 1986-01-03 1989-09-26 Astra Lakemedel Aktiebolag Optically pure compound and a process for its preparation
US4904673A (en) * 1988-01-14 1990-02-27 Dr. Karl Thomae, Gmbh Agent for treating bradycardia and bradyarrhythmia
EP0514341A1 (en) * 1991-05-17 1992-11-19 Sandoz Ltd. Novel heterocylic anilides for weed control
US5312799A (en) * 1991-05-17 1994-05-17 Sandoz Ltd. Amides
WO2010084516A1 (en) * 2009-01-23 2010-07-29 Jubilant Organosys Limited Process for producing optically active n-alkyl-piperidine-2-carboxanilide
CN104003930A (en) * 2014-06-13 2014-08-27 山东阿如拉药物研究开发有限公司 Method for preparing hydrochloric acid ropivacaine
CN104003930B (en) * 2014-06-13 2016-06-08 山东金诃药物研究开发有限公司 The preparation method of a kind of hydrochloric acid ropivacaine

Also Published As

Publication number Publication date
FR1599M (en) 1962-12-03

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