GB972974A - A method for purifying 7-chloro-1-methyl-5-phenyl-2,3-dihydro-1h-1,4-benzodiazepinone-(2) - Google Patents
A method for purifying 7-chloro-1-methyl-5-phenyl-2,3-dihydro-1h-1,4-benzodiazepinone-(2)Info
- Publication number
- GB972974A GB972974A GB909563A GB909563A GB972974A GB 972974 A GB972974 A GB 972974A GB 909563 A GB909563 A GB 909563A GB 909563 A GB909563 A GB 909563A GB 972974 A GB972974 A GB 972974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- benzodiazepinone
- dihydro
- chloro
- phenyl
- methyl
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
7-Chloro -1- methyl -5- phenyl-2, 3-dihydro-1H-1, 4-benzodiazepinone-(2) is purified by treating the crude compound with dilute hydrochloric acid, eliminating the insoluble material from the resulting solid/liquid mixture, treating the remaining liquid with nitric or sulphuric acid, separating the insoluble acid addition salt, heating the salt with a base and a C1-7 alkanol at a temperature sufficient to effect complete conversion to the free base, allowing the resulting solution to cool and separating the pure product therefrom. Specifications 972,964, 972,967 and 972,968 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17918962A | 1962-03-12 | 1962-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB972974A true GB972974A (en) | 1964-10-21 |
Family
ID=22655590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB909563A Expired GB972974A (en) | 1962-03-12 | 1963-03-07 | A method for purifying 7-chloro-1-methyl-5-phenyl-2,3-dihydro-1h-1,4-benzodiazepinone-(2) |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE629353A (en) |
| CH (1) | CH424792A (en) |
| ES (1) | ES285950A1 (en) |
| GB (1) | GB972974A (en) |
| MY (1) | MY6500152A (en) |
| OA (1) | OA00931A (en) |
-
1963
- 1963-02-13 CH CH177363A patent/CH424792A/en unknown
- 1963-03-07 GB GB909563A patent/GB972974A/en not_active Expired
- 1963-03-08 BE BE629353A patent/BE629353A/en unknown
- 1963-03-11 ES ES285950A patent/ES285950A1/en not_active Expired
-
1964
- 1964-12-26 OA OA51026A patent/OA00931A/en unknown
-
1965
- 1965-12-30 MY MY6500152A patent/MY6500152A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH424792A (en) | 1966-11-30 |
| BE629353A (en) | 1963-10-21 |
| ES285950A1 (en) | 1963-08-16 |
| OA00931A (en) | 1968-03-22 |
| MY6500152A (en) | 1965-12-31 |
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