Novel polymorphic form of 17-beta-(n-ter.butyl carbamoyl)-4-aza-5-alpha-androst-1-en-3one and a process for preparing it

Details for Australian Patent Application No. 2001269911 (hide)

Owner Dr. Reddy's Laboratories Ltd.

Inventors Rekha, K. Shashi; Vyas, K.; Rajan, S. T.; Reddy, S. Vishnuvardhana; Reddy, M., Satyanarayana; Rao, M. V. N. Brahmeshwara

Agent Griffith Hack

Pub. Number AU-B-2001269911

PCT Pub. Number WO02/20553

Priority 737/MAS/2000 07.09.00 IN

Filing date 19 June 2001

Wipo publication date 22 March 2002

Acceptance publication date 21 September 2006

International Classifications

C07J 73/00 (2006.01) Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by substitution of one or two carbon atoms by hetero atoms

Event Publications

21 September 2006 Application Accepted

  Published as AU-B-2001269911

18 January 2007 Standard Patent Sealed

7 February 2008 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This patent ceased under section 143(a), or Expired. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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