GB854140A - Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydrides - Google Patents
Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydridesInfo
- Publication number
- GB854140A GB854140A GB2181858A GB2181858A GB854140A GB 854140 A GB854140 A GB 854140A GB 2181858 A GB2181858 A GB 2181858A GB 2181858 A GB2181858 A GB 2181858A GB 854140 A GB854140 A GB 854140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carboxy
- amino acid
- acid anhydrides
- alpha
- relating
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three 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
- C07D263/44—Two oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Peptides Or Proteins (AREA)
- Cephalosporin Compounds (AREA)
Abstract
N-carboxy-a -amino acid anhydrides are purified by crystallisation from an organic solvent containing from 5 to 20% of its volume of a compound of formula: <FORM:0854140/IV(b)/1> where R is hydrogen or methyl, R3 is hydrogen or monovalent hydrocarbyl and R4 is hydrocarbyl. Specification 646,033 also is referred to.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2181858A GB854140A (en) | 1958-04-11 | 1958-04-11 | Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydrides |
BE577610A BE577610A (en) | 1958-04-11 | 1959-04-11 | Improvements in the production of N-carboxy-alpha-amino acid anhydrides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2181858A GB854140A (en) | 1958-04-11 | 1958-04-11 | Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydrides |
Publications (1)
Publication Number | Publication Date |
---|---|
GB854140A true GB854140A (en) | 1960-11-16 |
Family
ID=10169329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2181858A Expired GB854140A (en) | 1958-04-11 | 1958-04-11 | Improvements in and relating to the production of n-carboxy-alpha-amino acid anhydrides |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB854140A (en) |
-
1958
- 1958-04-11 GB GB2181858A patent/GB854140A/en not_active Expired
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