zinc bromides and regioconvergent Negishi coupling with aryl or alkenyl triflates. The use of a suitable phosphine ligand favoring Pd migration enabled the selective formation of the linear cross‐coupling product. Subsequently, mixtures of secondary alkyl bromides were prepared from linear alkanes by standard bromination, and regioconvergent cross‐coupling then provided access to the corresponding linear
Efficient Pd‐Catalyzed Direct Coupling of Aryl Chlorides with Alkyllithium Reagents
作者:Thorsten Scherpf、Henning Steinert、Angela Großjohann、Katharina Dilchert、Jens Tappen、Ilja Rodstein、Viktoria H. Gessner
DOI:10.1002/anie.202008866
日期:2020.11.9
organometallic reagents and frequently used in difficult metallation reactions. However, their direct use in the formation of C−C bonds is less established. Although remarkable advances in the coupling of aryllithium compounds have been achieved, Csp2−Csp3 coupling reactions are very limited. Herein, we report the first general protocol for the coupling or aryl chlorides with alkyllithiumreagents. Palladium
DIFUNCTIONALIZED AROMATIC COMPOUNDS AND POLYMERS THEREFROM
申请人:Bezwada Rao S.
公开号:US20110313057A1
公开(公告)日:2011-12-22
The present invention relates to compounds of formula I, which are difunctionalized aromatic compounds, and polymers formed from the same.
[R′—(X)
a
—OC(O)]
p
—Ar—[NR′—(Y)
b
—R′]
q
I
Polymers formed from the difunctionalized aromatics are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
[EN] COMPOUNDS, COMPOSITIONS AND METHODS FOR TREATING OR PREVENTING PNEUMOVIRUS INFECTION AND ASSOCIATED DISEASES<br/>[FR] COMPOSES, COMPOSITIONS ET METHODES DE TRAITEMENT OU DE PREVENTION D'INFECTIONS PNEUMOVIRALES ET DE MALADIES ASSOCIEES
申请人:VIROPHARMA INCORPORATED
公开号:WO1999038508A1
公开(公告)日:1999-08-05
(EN) Compounds, compositions and methods are provided for the prophylaxis and treatment of infections caused by viruses of the Pneumovirinae subfamily of Paramyxoviridae and diseases associated with such infections.(FR) L'invention concerne des composés, des compositions et des méthodes de prophylaxie et de traitement d'infections causées par les virus de la famille des Paramyxoviridae, et plus précisément de la sous-famille des Pneumovirinae, et de maladies associées à ces infections.
Methods and compositions of treating a flaviviridae family viral infection
申请人:Einav Shirit
公开号:US20100028299A1
公开(公告)日:2010-02-04
Briefly described, embodiments of this disclosure include compounds, pharmaceutical compositions, methods of treating a host infected with a virus from the Flaviviridae family of viruses, methods of inhibiting HCV replication in a host, methods of inhibiting the binding of NS4B polypeptide to the 3′UTR of HCV negative strand RNA in a host, methods of treating liver fibrosis in a host, and the like.