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 monohydrate

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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
Application number
HU9902484A
Other languages
Hungarian (hu)
Inventor
Ferenc Jurák
Miklós Nemes
Zoltán Kollár
János Egri
Sándor Jani
László Kocsis
János Berecz
Donáth Gyöngyi Vereczkeyné
István Becker
András Boza
Tibor Szabó
Zsolt Andrásy
Zoltán Gyüre
Original Assignee
EGIS Gyógyszergyár Rt.
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 EGIS Gyógyszergyár Rt. filed Critical EGIS Gyógyszergyár Rt.
Priority to HU9902484A priority Critical patent/HU223665B1/en
Publication of HU9902484D0 publication Critical patent/HU9902484D0/en
Publication of HUP9902484A2 publication Critical patent/HUP9902484A2/en
Publication of HU223665B1 publication Critical patent/HU223665B1/en

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  • 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.
HU9902484A 1999-07-22 1999-07-22 Process for producing s-2-(3',4'-dimethoxybenzyl)-2-hydrazino propionic acid monohydrate HU223665B1 (en)

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)

Also Published As

Publication number Publication date
HU9902484D0 (en) 1999-10-28
HU223665B1 (en) 2004-11-29

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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