[EN] PIPERIDINYL INDOLE DERIVATIVES, PREPARATION METHODS AND MEDICINAL USES THEREOF [FR] DÉRIVÉS DE PIPÉRIDINYL INDOLE, LEURS PROCÉDÉS DE PRÉPARATION ET LEURS UTILISATIONS MÉDICALES
摘要:
Compounds of formula (I) as piperidinyl indole derivatives, the preparation method thereof, pharmaceutical compositions comprising the compounds, and the pharmaceutical uses for the treatment a disease or disorder mediated by complement activation.
Silyl Imine Electrophiles in Enantioselective Catalysis: A Rosetta Stone for Peptide Homologation, Enabling Diverse <i>N</i>-Protected Aryl Glycines from Aldehydes in Three Steps
作者:Dawn M. Makley、Jeffrey N. Johnston
DOI:10.1021/ol501297a
日期:2014.6.6
es serve in the Bis(AMidine)-catalyzed addition of bromonitromethane with a high degree of enantioselection. This allows for the production of a range of protected α-bromo nitroalkane donors (including Fmoc) for use in Umpolung Amide Synthesis (UmAS). Hence, peptide homologation with nonnatural aryl glycine amino acids is achieved in three steps from aromaticaldehydes, which are plentiful and inexpensive
Asymmetric Synthesis of Propargylamides via 3,3‘-Disubstituted Binaphthol-Modified Alkynylboronates
作者:T. Robert Wu、J. Michael Chong
DOI:10.1021/ol0523087
日期:2006.1.1
Alkynylboronates derived from 3,3'-disubstituted-2,2'-binaphthols react with various N-acylimines to give the expected chiral propargylamides with up to 99% ee. This new methodology was applied to the first enantioselective synthesis of the antitubulin agent (-)-N-acetylcolchinol.
Synthesis, Characterization, and Reactivity Studies of Subphthalocyanine Boron Triflate
作者:Zikuan Wang、Xuefeng Fu
DOI:10.1021/acs.organomet.6b00754
日期:2017.1.23
The highly reactive subphthalocyanine boron triflate complex ((subPc)BOTf) was isolated and characterized by X-ray diffraction and spectroscopic methods. The combination of (subPc)BOTf and bis(trimethylsilyl)-amide (LiHMDS) yielded a "kinetically induced" frustrated Lewis pair system capable of activating a variety of substrates such as ethers, amides, and ketones. These reactions demonstrate the high reactivity of (subPc)BOTf toward organic molecules.
Palladium‐Catalyzed Cascade Heck Coupling and Allylboration of Iododiboron Compounds via Diboryl Radicals
作者:Yi Wei、Xiao‐Yu Xie、Jiabin Liu、Xiaoxiao Liu、Bo Zhang、Xin‐Yi Chen、Shi‐Jun Li、Yu Lan、Kai Hong
DOI:10.1002/anie.202401050
日期:2024.4.24
Geminal bis(boronates) are versatile synthetic building blocks in organic chemistry. The fact that they predominantly serve as nucleophiles in the previous reports, however, has restrained their synthetic potential. Herein we disclose the ambiphilic reactivity of α‐halogenated geminal bis(boronates), of which the first catalytic utilization was accomplished by merging a formal Heck cross‐coupling with a highly diastereoselective allylboration of aldehydes or imines, providing a new avenue for rapid assembly of polyfunctionalized boron‐containing compounds. We demonstrated that this cascade reaction is highly efficient and compatible with various functional groups, and a wide range of heterocycles. In contrast to a classical Pd(0/II) scenario, mechanistic experiments and DFT calculations have provided strong evidence for a catalytic cycle involving Pd(I)/diboryl carbon radical intermediates.