DE2003101A1 - Reinigungsverfahren - Google Patents

Reinigungsverfahren

Info

Publication number
DE2003101A1
DE2003101A1 DE19702003101 DE2003101A DE2003101A1 DE 2003101 A1 DE2003101 A1 DE 2003101A1 DE 19702003101 DE19702003101 DE 19702003101 DE 2003101 A DE2003101 A DE 2003101A DE 2003101 A1 DE2003101 A1 DE 2003101A1
Authority
DE
Germany
Prior art keywords
dopa
percent
crystalline
weight
solvent mixture
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.)
Pending
Application number
DE19702003101
Other languages
German (de)
English (en)
Inventor
Mcmullan Edward Arthur
Arnold Brossi
Heveran John Edward
Senkowski Bernard Zigmund
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of DE2003101A1 publication Critical patent/DE2003101A1/de
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19—Carboxylic acids, e.g. valproic acid
    • A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19702003101 1969-01-31 1970-01-23 Reinigungsverfahren Pending DE2003101A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79572869A 1969-01-31 1969-01-31

Publications (1)

Publication Number Publication Date
DE2003101A1 true DE2003101A1 (de) 1970-08-06

Family

ID=25166294

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702003101 Pending DE2003101A1 (de) 1969-01-31 1970-01-23 Reinigungsverfahren

Country Status (8)

Country Link
US (1) US3592843A (https=)
JP (1) JPS5136259B1 (https=)
BE (1) BE745034A (https=)
DE (1) DE2003101A1 (https=)
FR (1) FR2060313B1 (https=)
GB (1) GB1266812A (https=)
NL (1) NL7001363A (https=)
SE (1) SE378103B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880918A (en) * 1970-03-17 1975-04-29 Ajinomoto Kk Method of purifying 3,4-dihydroxyphenylalanine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622666A (https=) *
DE1182246B (de) * 1961-11-17 1964-11-26 Bayer Ag Verfahren zur Reinigung von alpha-methyl-beta-(3, 4-dihydroxyphenyl)-alanin

Also Published As

Publication number Publication date
US3592843A (en) 1971-07-13
BE745034A (fr) 1970-07-28
SE378103B (https=) 1975-08-18
GB1266812A (https=) 1972-03-15
FR2060313B1 (https=) 1974-03-22
JPS5136259B1 (https=) 1976-10-07
FR2060313A1 (https=) 1971-06-18
NL7001363A (https=) 1970-08-04

Similar Documents

Publication Publication Date Title
DE3510761A1 (de) Kristallisationsverfahren
DE1668994C3 (https=)
DE4426818A1 (de) Verfahren zur Kristallisation von Iopamidol
DE2501957C2 (de) Verfahren zur Gewinnung von optisch aktivem p-Hydroxyphenylglycin
DE927140C (de) Verfahren zur Fraktionierung von Staerke
DE2003101A1 (de) Reinigungsverfahren
DE1618492B1 (de) Fruktosegewinnung aus Zucker
DE655404C (de) Verfahren zur Herstellung eines Esters des Pseudotropins
DE2319493A1 (de) Verfahren zur herstellung eines optisch aktiven alpha-phenyl-glycinbenzolsulfonats durch optische aufspaltung von dl-alphaphenylglycinbenzolsulfonat
EP0374890A1 (de) Verfahren zur Herstellung von Anthrachinon-Derivaten
DE1232966B (de) Verfahren zur Herstellung von (+)-Enantiomorphen von Indolverbindungen
DE696810C (de) Verfahren zur Herstellung von Ascorbinsaeure
DE656741C (de) Verfahren zur Darstellung von Lysergsaeurehydrazid
DE813709C (de) Verfahren zur Herstellung von aromatischen monocyclischen Triaminokohlenwasserstoffen
DE916207C (de) Verfahren zur Herstellung von Penicillinsalzen
DE590312C (de) Verfahren zur Herstellung von Verbindungen von Chloral und seinen Homologen mit Chinin
DE1157216B (de) Verfahren zur Gewinnung von Alkali- und Erdalkalisalzen von ª‡-Hydroxy-ª†-methylmercaptobuttersaeure
DE2265632C2 (de) Verfahren zur Herstellung von 2,4,6,8-Tetramethyl-2,4,6,8-tetraazabicyclo-[3,3,0]-octandion-(3,7)
DE859518C (de) Verfahren zur Herstellung des Natrium- oder Calciumsalzes des Penicillins, gegebenenfalls in aufgeloester Form, aus dem Kaliumsalz
DE1954280C3 (de) Verfahren zur Gewinnung eines Germin-Addukts aus Germinwerten
EP0007347A1 (de) Lipidsenkende Alkylenglykolderivate und Verfahren zu ihrer Herstellung.
DE948158C (de) Verfahren zur Herstellung von Zink-Komplexsalzen von Tripeptiden
AT234728B (de) Verfahren zur Herstellung von reinen Saccharoseestern
DE977519C (de) Verfahren zur Herstellung von 1-Phenyl-2-dihalogenacetamino-1, 3-propandiolen
DE913779C (de) Verfahren zur Herstellung eines Oxyphenyl-aethanolamins