HUP9902484A2 - Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrate - Google Patents
Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrateInfo
- Publication number
- HUP9902484A2 HUP9902484A2 HU9902484A HUP9902484A HUP9902484A2 HU P9902484 A2 HUP9902484 A2 HU P9902484A2 HU 9902484 A HU9902484 A HU 9902484A HU P9902484 A HUP9902484 A HU P9902484A HU P9902484 A2 HUP9902484 A2 HU P9902484A2
- Authority
- HU
- Hungary
- Prior art keywords
- dimethoxybenzyl
- hydrazino
- producing
- propionic acid
- acid
- Prior art date
Links
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract 2
- FYWDUQCSMYWUHV-UHFFFAOYSA-N 3-chloro-5-hydroxypentan-2-one Chemical compound CC(=O)C(Cl)CCO FYWDUQCSMYWUHV-UHFFFAOYSA-N 0.000 abstract 1
- 229910019093 NaOCl Inorganic materials 0.000 abstract 1
- 239000005708 Sodium hypochlorite Substances 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- QTAOMKOIBXZKND-PPHPATTJSA-N carbidopa Chemical compound O.NN[C@@](C(O)=O)(C)CC1=CC=C(O)C(O)=C1 QTAOMKOIBXZKND-PPHPATTJSA-N 0.000 abstract 1
- 229960004205 carbidopa Drugs 0.000 abstract 1
- 239000008139 complexing agent Substances 0.000 abstract 1
- 229960005076 sodium hypochlorite Drugs 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
(S)-2-(3',4'-di:methoxy-benzyl) -2-hydrazimo-propionic -acid-monohydrate of general formula (1) is prepd. from (S)-2-(3',4'-di:methoxy-benzyl)-2-methyl hydanatoic-acid (III) and sodium-hypo-chlorite contg. alkaline soln. The molar ratio of NaOCl:substd. hydantoic-acid is: 1.00-1.10:1.0. The reaction proceeds in a presence of a complexing agent. The cpd. of formula (1) in an intermediate in the prepn. of 'carbidopa', a pharmaceutical prod.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9902484A HU223665B1 (en) | 1999-07-22 | 1999-07-22 | Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9902484A HU223665B1 (en) | 1999-07-22 | 1999-07-22 | Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrate |
Publications (3)
Publication Number | Publication Date |
---|---|
HU9902484D0 HU9902484D0 (en) | 1999-10-28 |
HUP9902484A2 true HUP9902484A2 (en) | 2001-02-28 |
HU223665B1 HU223665B1 (en) | 2004-11-29 |
Family
ID=89998826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU9902484A HU223665B1 (en) | 1999-07-22 | 1999-07-22 | Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrate |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU223665B1 (en) |
-
1999
- 1999-07-22 HU HU9902484A patent/HU223665B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU223665B1 (en) | 2004-11-29 |
HU9902484D0 (en) | 1999-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HFG4 | Patent granted, date of granting |
Effective date: 20041007 |
|
HC9A | Change of name, address |
Owner name: EGIS GYOGYSZERGYAR NYRT., HU Free format text: FORMER OWNER(S): EGIS GYOGYSZERGYAR RT., HU |
|
MM4A | Lapse of definitive patent protection due to non-payment of fees |