GB774463A - Alkaloid derivatives and process for their manufacture - Google Patents
Alkaloid derivatives and process for their manufactureInfo
- Publication number
- GB774463A GB774463A GB21760/55A GB2176055A GB774463A GB 774463 A GB774463 A GB 774463A GB 21760/55 A GB21760/55 A GB 21760/55A GB 2176055 A GB2176055 A GB 2176055A GB 774463 A GB774463 A GB 774463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- salts
- alkyl
- syringoyl
- reserpate
- 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
Abstract
The invention comprises reserpic acid esters of the formula <FORM:0774463/IV(b)/1> where Res is the residue of reserpic acid, R is alkyl and R1 is methyl, propyl or butyl; it also includes the compounds (R1=ethyl, R=other than methyl) and salts of all the esters. These are made by known methods from alkyl reserpates or salts thereof, e.g. by reaction with a halide or other functional derivative of an O-carbalkoxy - syringic acid. Alternatively an alkyl O-syringoyl-reserpate is reacted with the appropriate carbonic acid monoester or derivative thereof, e.g. the chloroformate. The products are free bases or salts, depending on the method of formation, and one may be converted into the other by normal methods. Salts may be formed with the same acids as in the parent Specification. Examples are given of the preparation of compounds where R is methyl and ethyl and R1 is methyl, propyl, n-butyl and isobutyl. Methyl O-syringoyl-reserpate is made as in the parent Specification.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US774463XA | 1954-07-27 | 1954-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774463A true GB774463A (en) | 1957-05-08 |
Family
ID=22138099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21760/55A Expired GB774463A (en) | 1954-07-27 | 1955-07-27 | Alkaloid derivatives and process for their manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB774463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1137442B (en) * | 1958-10-31 | 1962-10-04 | Chimiotherapie Lab Franc | Process for the preparation of 11-dimethylamonideserpidine |
-
1955
- 1955-07-27 GB GB21760/55A patent/GB774463A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1137442B (en) * | 1958-10-31 | 1962-10-04 | Chimiotherapie Lab Franc | Process for the preparation of 11-dimethylamonideserpidine |
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