WO2003040439A3 - A process for crystallising oxonorleucinacetal - Google Patents

A process for crystallising oxonorleucinacetal Download PDF

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Publication number
WO2003040439A3
WO2003040439A3 PCT/EP2002/010568 EP0210568W WO03040439A3 WO 2003040439 A3 WO2003040439 A3 WO 2003040439A3 EP 0210568 W EP0210568 W EP 0210568W WO 03040439 A3 WO03040439 A3 WO 03040439A3
Authority
WO
WIPO (PCT)
Prior art keywords
crystallising
oxonorleucinacetal
oxonorleucinacetals
ona
possess
Prior art date
Application number
PCT/EP2002/010568
Other languages
French (fr)
Other versions
WO2003040439A2 (en
Inventor
Michael Schwarm
Juergen Roos
Harald Groeger
Helge Werner
Corinna Rippel
Original Assignee
Degussa
Michael Schwarm
Juergen Roos
Harald Groeger
Helge Werner
Corinna Rippel
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 Degussa, Michael Schwarm, Juergen Roos, Harald Groeger, Helge Werner, Corinna Rippel filed Critical Degussa
Priority to AU2002340922A priority Critical patent/AU2002340922A1/en
Publication of WO2003040439A2 publication Critical patent/WO2003040439A2/en
Publication of WO2003040439A3 publication Critical patent/WO2003040439A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C227/38—Separation; Purification; Stabilisation; Use of additives
    • C07C227/40—Separation; Purification
    • C07C227/42—Crystallisation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)

Abstract

The present invention provides a process for crystallising oxonorleucinacetals (Ona) of the general formula (I). In particular, precipitation is performed from an aqueous medium with the addition of organic solvents which do not possess any free hydroxyl groups. This leads, after filtration etc., to a crystalline material with little residual moisture.
PCT/EP2002/010568 2001-11-09 2002-09-20 A process for crystallising oxonorleucinacetal WO2003040439A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002340922A AU2002340922A1 (en) 2001-11-09 2002-09-20 A process for crystallising oxonorleucinacetal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001155065 DE10155065A1 (en) 2001-11-09 2001-11-09 Process for the crystallization of oxonorleucine acetal
DE10155065.0 2001-11-09

Publications (2)

Publication Number Publication Date
WO2003040439A2 WO2003040439A2 (en) 2003-05-15
WO2003040439A3 true WO2003040439A3 (en) 2003-10-09

Family

ID=7705180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010568 WO2003040439A2 (en) 2001-11-09 2002-09-20 A process for crystallising oxonorleucinacetal

Country Status (3)

Country Link
AU (1) AU2002340922A1 (en)
DE (1) DE10155065A1 (en)
WO (1) WO2003040439A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0905257A1 (en) * 1997-09-25 1999-03-31 Dsm N.V. Process for preparing optically active 2-amino-Omega-oxoalkanoic acid derivatives
EP0919630A1 (en) * 1997-04-22 1999-06-02 Kaneka Corporation Process for producing l-allysine acetals
WO2000003981A2 (en) * 1998-07-15 2000-01-27 Bristol-Myers Squibb Company Preparation of (s)-2-amino-6,6-dimethoxyhexanoic acid methyl ester via novel dioxolanes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919630A1 (en) * 1997-04-22 1999-06-02 Kaneka Corporation Process for producing l-allysine acetals
EP0905257A1 (en) * 1997-09-25 1999-03-31 Dsm N.V. Process for preparing optically active 2-amino-Omega-oxoalkanoic acid derivatives
WO2000003981A2 (en) * 1998-07-15 2000-01-27 Bristol-Myers Squibb Company Preparation of (s)-2-amino-6,6-dimethoxyhexanoic acid methyl ester via novel dioxolanes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANGEL RUMBERO ET AL: "Chemical synthesis of Allysine Ethylene Acetal and conversion in situ into 1-Piperideine-6-carboxylic acid: key intermediate of the alpha-aminoadipic acid for beta-lactam antibiotics biosynthesis", BIOORGANIC & MEDICINAL CHEMISTRY, ELSEVIER SCIENCE LTD, GB, vol. 3, no. 9, 1995, pages 1237 - 1240, XP002119421, ISSN: 0968-0896 *

Also Published As

Publication number Publication date
DE10155065A1 (en) 2003-05-22
AU2002340922A1 (en) 2003-05-19
WO2003040439A2 (en) 2003-05-15

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