Preparation of (−)-Nutlin-3 Using Enantioselective Organocatalysis at Decagram Scale
作者:Tyler A. Davis、Anna E. Vilgelm、Ann Richmond、Jeffrey N. Johnston
DOI:10.1021/jo401321a
日期:2013.11.1
Chiral nonracemic cis-4,5-bis(aryl)imidazolines have emerged as a powerful platform for the development of cancer chemotherapeutics, stimulated by the Hoffmann-La Roche discovery that Nutlin-3 can restore apoptosis in cells with wild-type p53. The lack of efficient methods for the enantioselective synthesis of cis-imidazolines, however, has limited their more general use. Our disclosure of the first enantioselective synthesis of (-)-Nutlin-3 provided a basis to prepare larger amounts of this tool used widely in cancer biology. Key to the decagram-scale synthesis described here was the discovery of a novel bis(amidine) organocatalyst that provides high enantioselectivity at warmer reaction temperature (-20 degrees C) and low catalyst loadings. Further refinements to the procedure led to the synthesis of (-)-Nutlin-3 in a 17 g batch and elimination of all but three chromatographic purifications.
US8889863B2
申请人:——
公开号:US8889863B2
公开(公告)日:2014-11-18
The hydrophobically-tagged MDM2–p53 interaction inhibitor Nutlin-3a-HT is more potent against tumor cells than Nutlin-3a
作者:Florian Nietzold、Stefan Rubner、Thorsten Berg
DOI:10.1039/c9cc07795b
日期:——
The hydrophobically-tagged MDM2–p53-interaction inhibitor Nutlin-3a-HT reduces MDM2 levels upon p53 reactivation, and is more potent against tumor cells than Nutlin-3a.
STEREOSELECTIVE METHODS, CATALYSTS AND INTERMEDIATES FOR THE SYNTHESIS OF (-)-NUTLIN-3 AND RELATED COMPOUNDS
申请人:Johnston Jeffrey N.
公开号:US20120088915A1
公开(公告)日:2012-04-12
The present invention provides methods and intermediates are provided for the preparation of (−)-Nutlin-3. Methods and intermediates are also provided for the enantioselective addition of aryl nitromethanes to aldimines. Bis(amidine) catalysts for the use in these and other reactions are also provided.