ES315997A1 - Procedure for the manufacture of l (-) - alpha-methyl-beta (3,4-dihydroxy-phenyl) alanin. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the manufacture of l (-) - alpha-methyl-beta (3,4-dihydroxy-phenyl) alanin. (Machine-translation by Google Translate, not legally binding)

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Publication number
ES315997A1
ES315997A1 ES0315997A ES315997A ES315997A1 ES 315997 A1 ES315997 A1 ES 315997A1 ES 0315997 A ES0315997 A ES 0315997A ES 315997 A ES315997 A ES 315997A ES 315997 A1 ES315997 A1 ES 315997A1
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ES
Spain
Prior art keywords
methyl
translation
manufacture
machine
legally binding
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
Application number
ES0315997A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roche Diagnostics GmbH
CF Boehringer und Soehne GmbH
Original Assignee
Boehringer Mannheim GmbH
CF Boehringer und Soehne GmbH
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 Boehringer Mannheim GmbH, CF Boehringer und Soehne GmbH filed Critical Boehringer Mannheim GmbH
Publication of ES315997A1 publication Critical patent/ES315997A1/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Process for the manufacture of L - (-) - α -methyl- β-( 3,4-dihydroxyphenyl) -alanine, characterized in that D, L- α -amino- α-( 3, 4-dimethoxybenzyl) -propium-nitrile with an acetic ester isocyanate, the D, L- α-( 3,4-di-met02benzyl) - α - (ω -carbalkoxymethyl-ureido) -pr0.pionitrile obtained is treated with aqueous mineral acids, the D, L-5- (3,4-amethoxybenzyl-5-methyl-hydantoin-3-acetic acid obtained is subjected to a dissociation of racemates and the acid L (-) - 5- (3 , 4-dimethoxybenzyl) -5-methyl-hydantoin-3-acetic acid is transferred by arcaline and/or acid saponification to L - (-) α -methyl- β-( 3,4-dihydroxyphenyl) -alanine. (Machine-translation by Google Translate, not legally binding)
ES0315997A 1964-07-31 1965-07-30 Procedure for the manufacture of l (-) - alpha-methyl-beta (3,4-dihydroxy-phenyl) alanin. (Machine-translation by Google Translate, not legally binding) Expired ES315997A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE315997X 1964-07-31

Publications (1)

Publication Number Publication Date
ES315997A1 true ES315997A1 (en) 1965-11-16

Family

ID=38571954

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0315997A Expired ES315997A1 (en) 1964-07-31 1965-07-30 Procedure for the manufacture of l (-) - alpha-methyl-beta (3,4-dihydroxy-phenyl) alanin. (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES315997A1 (en)

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