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GB816273A - Cycloalkylamides of d-lysergic acid and method for producing the same - Google Patents

Cycloalkylamides of d-lysergic acid and method for producing the same

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Publication number
GB816273A
GB816273A GB22280/57A GB2228057A GB816273A GB 816273 A GB816273 A GB 816273A GB 22280/57 A GB22280/57 A GB 22280/57A GB 2228057 A GB2228057 A GB 2228057A GB 816273 A GB816273 A GB 816273A
Authority
GB
United Kingdom
Prior art keywords
acid
amides
lysergic
cycloalkylamides
isolysergic
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
GB22280/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB816273A publication Critical patent/GB816273A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

The invention comprises cycloalkylamides of d-lysergic acid, containing 3-7 carbon atoms in the cycloalkyl ring, and their acid maleates, and the preparation thereof by reacting, at temperatures up to 35 DEG C., and in ethereal solution, an azide of d-lysergic or d- or dl-isolysergic acid with at least two equivalents of a cycloalkylamine having 3-7 carbon atoms in the ring, and converting the resulting crude cycloalkylamides into pure cycloalkylamides of d-lysergic acid, which, if desired, are further converted into their acid maleates by mixing solutions thereof and of maleic acid in a solvent which does not readily dissolve the resulting salt. The working up of the crude amides involves such processes as chromatographic fractionation, epimerization of d-isolysergic amides to d-lysergic amides by means of alkali metal hydroxides, resolution of racemic amides by means of dibenzoyl-d-tartaric acid, and racemization of l-amides. Examples describe the preparation of the cyclopropylamide, cyclobutylamide, cyclopentylamide, cyclohexylamide and cycloheptylamide of d-lysergic acid, and their acid maleates, and, as by-products in some cases, the corresponding d-isolysergic amides.
GB22280/57A 1956-08-09 1957-07-15 Cycloalkylamides of d-lysergic acid and method for producing the same Expired GB816273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS816273X 1956-08-09

Publications (1)

Publication Number Publication Date
GB816273A true GB816273A (en) 1959-07-08

Family

ID=5455762

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22280/57A Expired GB816273A (en) 1956-08-09 1957-07-15 Cycloalkylamides of d-lysergic acid and method for producing the same

Country Status (1)

Country Link
GB (1) GB816273A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931447A (en) * 1987-06-15 1990-06-05 Eli Lilly And Company Cycloalkylamides of (8β)-1-alkyl-6-(substituted) ergolines
US4981859A (en) * 1987-06-15 1991-01-01 Cycloalkylamides of (8 beta )-1-alkyl-6-(substituted)ergolines
US5441961A (en) * 1992-08-27 1995-08-15 Eli Lilly And Company Substituted cyclo or bicycloalkylamides of (8β)-6-(substituted) ergolines
US5674875A (en) * 1993-05-04 1997-10-07 Eli Lilly And Company Method of blocking human 5-hydroxytryptamine-2 receptors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931447A (en) * 1987-06-15 1990-06-05 Eli Lilly And Company Cycloalkylamides of (8β)-1-alkyl-6-(substituted) ergolines
US4981859A (en) * 1987-06-15 1991-01-01 Cycloalkylamides of (8 beta )-1-alkyl-6-(substituted)ergolines
US5441961A (en) * 1992-08-27 1995-08-15 Eli Lilly And Company Substituted cyclo or bicycloalkylamides of (8β)-6-(substituted) ergolines
US5739146A (en) * 1992-08-27 1998-04-14 Eli Lilly And Company Substituted cyclo or bicycloalkylamides of (8β)-6-(substituted) ergolines
US5674875A (en) * 1993-05-04 1997-10-07 Eli Lilly And Company Method of blocking human 5-hydroxytryptamine-2 receptors

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