Method for cleaning 3-hydroxyamidinophenylalanine derivatives by the precipitation and recrystallisation of a salt and an aromatic sulphonic acid

Details for Australian Patent Application No. 2005297610 (hide)

Owner Wilex AG

Inventors Greiving, Helmut

Agent Davies Collison Cave

Pub. Number AU-B-2005297610

PCT Pub. Number WO2006/042678

Priority 04024553.2 14.10.04 EP

Filing date 14 October 2005

Wipo publication date 27 April 2006

Acceptance publication date 19 May 2011

International Classifications

C07D 295/20 (2006.01) Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms

C07C 303/40 (2006.01) Preparation of esters or amides of sulfuric acids

C07C 311/19 (2006.01) Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups

Event Publications

19 April 2007 PCT application entered the National Phase

  PCT publication WO2006/042678 Priority application(s): WO2006/042678

19 May 2011 Application Accepted

  Published as AU-B-2005297610

15 September 2011 Standard Patent Sealed

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