The asymmetric synthesis of α-substituted α-methyl and α-phenyl phosphonic acids: Design, carbanion geometry, reactivity and preparative aspects of chiral alkyl bicyclic phosphonamides
作者:Youssef L. Bennani、Stephen Hanessian
DOI:10.1016/0040-4020(96)00829-0
日期:1996.10
The design, preparation, structural and spectroscopic analyses of topologically unique and enantiomerically pure alkylphosphonamides are described. In the case of α-ethyl and α-benzyl phosphonamides, the geometry of both the secondary and tertiary carbanions was determined to be planar through deprotonation/deuteration/alkylation experiments. Stereoselective alkylations of such systems proceeded in
The present invention provides compounds and compositions thereof which are useful as inhibitors of plasma kallikrein and which exhibit desirable characteristics for the same.
本发明提供了作为血浆激肽酶抑制剂并具有相同理想特性的化合物及其组合物。
[EN] INDOLE DERIVATIVES<br/>[FR] DÉRIVÉS DE L'INDOLE
申请人:LUNDBECK & CO AS H
公开号:WO2009120655A1
公开(公告)日:2009-10-01
The present invention relates to indole derivatives which bind to the MCHl receptor. In separate aspects, the subject invention is directed to uses of said compounds in the preparation of a pharmaceutical composition for the treatment of obesity and CNS related disorders and to methods of treating said disorders comprising administering a therapeutically effective amount of a compound of the invention.
Direct N–O bond formation <i>via</i> oxidation of amines with benzoyl peroxide
作者:Amit Banerjee、Hisashi Yamamoto
DOI:10.1039/c8sc04996c
日期:——
(amide) formation starting from commercially available amines and benzoylperoxide. The oxidation of 1,2-diamines to furnish bis-(benzoyloxy)-1,2-diamines is reported for the first time. We found that a significant amount of water (BPO : water = 3 : 1) in combination with Cs2CO3 is necessary to achieve high selectivity and yield. The reaction conditions are applicable to a wide range of 1,2-diamine
Synthesis of Phosphoramides for the Lewis Base-Catalyzed Allylation and Aldol Addition Reactions
作者:Scott E. Denmark、Xiping Su、Yutaka Nishigaichi、Diane M. Coe、Ken-Tsung Wong、Stephen B. D. Winter、Jun Young Choi
DOI:10.1021/jo9820723
日期:1999.3.1
Both chiral and achiral phosphoramides of diverse structure were prepared from diamines by the coupling to phosphorus(V) or phosphorus(III) reagents. Several enantiopure 1,2-diphenyl-1,2-ethanediamine analogues have been prepared by the reductive coupling of the corresponding N-silylimine with NbCl(4)(THF)(2) and subsequent resolution by the formation of diastereomeric menthyl carbamates. (S,S)-N,