A New General Method for the Preparation of <i>N</i>-Sulfonyloxaziridines
作者:José Luis García Ruano、José Alemán、Cristina Fajardo、Alejandro Parra
DOI:10.1021/ol052250w
日期:2005.11.1
N-alkylsulfonyl- and N-arylsulfonyloxaziridines from the corresponding N-sulfinylimines involving a one-pot, two-step oxidation process with m-CPBA (1 equiv) and m-CPBA/KOH (1.1 equiv) is reported. The method is applicable to N-sulfinylimines derived from aldehydes (aliphatic and aromatic) and ketones (dialkyl and aryl alkyl) and preserves C=C-conjugated double bonds. Almost quantitative yields, very mild
[EN] FUMAGILLOL COMPOUNDS AND METHODS OF MAKING AND USING SAME<br/>[FR] COMPOSÉS DE FUMAGILLOL, ET LEURS PROCÉDÉS DE FABRICATION ET D'UTILISATION
申请人:ZAFGEN INC
公开号:WO2018031877A1
公开(公告)日:2018-02-15
Disclosed herein, in part, are fumagillol compounds and methods of use in treating medical disorders, such as obesity. Pharmaceutical compositions and methods of making fumagillol compounds are provided. The compounds are contemplated to have activity against methionyl aminopeptidase 2.
PROCESS AND INTERMEDIATES FOR MAKING TUBULYSIN ANALOGS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20170362259A1
公开(公告)日:2017-12-21
An improved process for making a compound B of the structure
wherein n, R
1
, R
2
, and R
3
are as defined in the specification. Compound B can be used to make tubulysin analogs that are, in turn, useful as anti-cancer agents, particularly when deployed in an antibody-drug conjugate.
Influence of HMPA on the Stereochemical Outcome of the Addition of a Racemic Allenylzinc onto Enantiopure N-tert-Butanesulfinimines: Stereoselective Access to Enantiopurecis-Ethynylaziridines
作者:Franck Ferreira、Max Audouin、Fabrice Chemla
DOI:10.1002/chem.200500268
日期:2005.9.5
presence of 60 equivalents of HMPA, the condensation of the racemicallenylzinc derived from 1-chloro-3-trimethylsilylpropyne ontoenantiopure non-alpha-branched N-tert-butanesulfinimines was proven to give access to the corresponding cis-ethynylaziridines as the major products. The good cis selectivity observed presumably resulted from a high kinetic resolution with the allenylzinc being partially configurationally
Ruthenium-Catalyzed Intramolecular Hydrocarbamoylation of Allylic Formamides: Convenient Access to Chiral Pyrrolidones
作者:Nicolas Armanino、Erick M. Carreira
DOI:10.1021/ja4026787
日期:2013.5.8
An attractive strategy for the synthesis of saturated nitrogen-containing heterocycles is described herein, involving the implementation of ruthenium-catalyzed intramolecular hydrocarbamoylation of olefins. The process proceeds by formal C-H bond cleavage of an allylic formamide followed by construction of a new C-C bond in a reaction that is characterized by complete atom-economy. The method is particularly
本文描述了一种合成饱和含氮杂环的有吸引力的策略,包括实施钌催化的烯烃分子内烃甲酰化。该过程通过烯丙基甲酰胺的正式 CH 键裂解进行,然后在以完全原子经济为特征的反应中构建新的 CC 键。该方法与许多可用于制备旋光烯丙基甲酰胺的有效策略相结合特别有价值。