The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2008
Filed:
Mar. 18, 2005
Andrew Bruce Holmes, Melbourne, AU;
Catherine Janet Smith, Cambridge, GB;
Melanie Wing-sze Tsang, Putney, GB;
Theresa Rachel Early, Cambridge, GB;
Richard Eden Shute, Macclesfield, GB;
Andrew Bruce Holmes, Melbourne, AU;
Catherine Janet Smith, Cambridge, GB;
Melanie Wing-Sze Tsang, Putney, GB;
Theresa Rachel Early, Cambridge, GB;
Richard Eden Shute, Macclesfield, GB;
AstraZeneca UK Limited, , GB;
Abstract
A method of synthesizing a compound of formula I: comprising the step of reacting a moiety of formula II: with a moiety of formula III: in compressed carbon dioxide in the presence of a transition metal catalyst and a base, wherein L is a labile leaving group; Ris optionally substituted Caryl; Ris selected from optionally substituted Caryl, optionally substituted Cheterocyclyl, optionally substituted Calkyl, and optionally substituted sulfonyl; Ris selected from H and optionally substituted Calkyl, Cheterocyclyl and Caryl; or Rand Rtogether with the nitrogen atom to which they are attached form optionally substituted nitrogen-containing Cheterocylyl or Cheteroaryl; and RRand Rare independently selected from optionally substituted Calkyl, Caryl, Cheterocyclyl, hydroxy, halo, amino and Calkoxy, or two of R, Rand R, together with the silicon atom to which they are attached, may form a silicon containing Cheterocyclyl group.