Synthesis of β-Functionalized Porphyrins via Palladium-Catalyzed Carbon−Heteroatom Bond Formations: Expedient Entry into β-Chiral Porphyrins
作者:Guang-Yao Gao、Joshua V. Ruppel、D. Brett Allen、Ying Chen、X. Peter Zhang
DOI:10.1021/jo701476m
日期:2007.11.1
A procedure was developed for the preparation of β-monobromo-tetraphenylporphyrin (BrTPP) in a greatly improved yield from the selectivebromination of tetraphenylporphyrin (TPP) by NBS. BrTPP was successfully employed as a versatile synthon for convenientsynthesis of a wide range of β-monofunctionalized porphyrins with various heteroatom functionalities via palladium-mediated carbon−heteroatom bond
Bromoporphyrins as Versatile Synthons for Modular Construction of Chiral Porphyrins: Cobalt-Catalyzed Highly Enantioselective and Diastereoselective Cyclopropanation
作者:Ying Chen、Kimberly B. Fields、X. Peter Zhang
DOI:10.1021/ja044889l
日期:2004.11.1
to be versatile synthons for modular construction of chiral porphyrins via palladium-catalyzed amidation reactions with chiral amides. The quadruple carbon-nitrogen bond formation reactions were accomplished in high yields with different chiral amide building blocks under mild conditions, forming a family of D2-symmetric chiral porphyrins. Cobalt(II) complexes of these chiral porphyrins were prepared
5,10-双(2',6'-二溴苯基)卟啉在 10 和 20 位具有各种取代基,被证明是通过钯催化的手性酰胺酰胺化反应模块化构建手性卟啉的通用合成子。在温和的条件下,使用不同的手性酰胺结构单元以高产率完成了四重碳氮键形成反应,形成了 D2 对称手性卟啉家族。这些手性卟啉的钴 (II) 配合物以高产率制备,并且在实用的一锅法(烯烃作为限制性试剂且不缓慢添加重氮试剂)下显示为高对映选择性和非对映选择性环丙烷化的活性催化剂。
[EN] COBALT-CATALYZED ASYMMETRIC CYCLOPROPANATION WITH DIAZOSULFONES<br/>[FR] CYCLOPROPANATION ASYMÉTRIQUE CATALYSÉE PAR COBALT AVEC DES DIAZOSULFONES
申请人:UNIV SOUTH FLORIDA
公开号:WO2009114849A1
公开(公告)日:2009-09-17
Asymmetric cyclopropanation of olefins with diazosulfones.
烯烃与重氮磺酮的不对称环丙烷化反应。
PYRROLOPYRIDINES AS KINASE INHIBITORS
申请人:Le Huerou Yvan
公开号:US20110070317A1
公开(公告)日:2011-03-24
Compounds of Formula (I) are useful for inhibition of CHK1 and/or CHK2. Methods of using compounds of Formula (I) and stereoisomers and pharmaceutically acceptable salts thereof, for in vitro, in situ, and in vivo diagnosis, prevention or treatment of such disorders in mammalian cells, or associated pathological conditions are disclosed.
Compounds of Formula (I) are useful for inhibition of CHK1 and/or CHK2. Methods of using compounds of Formula (I) and stereoisomers and pharmaceutically acceptable salts thereof, for in vitro, in situ, and in vivo diagnosis, prevention or treatment of such disorders in mammalian cells, or associated pathological conditions are disclosed.