Direct Aerobic Carbonylation of C(sp2)–H and C(sp3)–H Bonds through Ni/Cu Synergistic Catalysis with DMF as the Carbonyl Source
摘要:
The direct carbonylation of aromatic sp(2) and unactivated sp3 C-H bonds of amides was achieved via nickel/copper catalysis under atmospheric O-2 with the assistance of a bidentate directing group. The sp(2) C-H functionalization showed high regioselectivity and good functional group compatibility. The sp(3) C-H functionalization showed high site-selectivity by favoring the C-H bonds of alpha-methyl groups over those of the alpha-methylene, beta- or gamma-methyl groups. Moreover, this reaction showed a predominant preference for functionalizing the alpha-methyl over alpha-phenyl group. Mechanistic studies revealed that nickel/copper synergistic catalysis is involved in this process.
[EN] ANTIBODY DRUG CONJUGATES<br/>[FR] CONJUGUÉS ANTICORPS-MÉDICAMENT
申请人:TAKEDA PHARMACEUTICALS CO
公开号:WO2020229982A1
公开(公告)日:2020-11-19
The present disclosure provides antibody drug conjugates comprising STING modulators. Also provided are compositions comprising the antibody drug conjugates. The compounds and compositions are useful for stimulating an immune response in a subject in need thereof. Formula (I):
New Protected Protecting Groups for the 5′-Hydroxy Group of Deoxynucleosides by Use of 2-(Hydroxymethyl)- and 2-[(Methylamino)methyl]benzoyl Skeletons and Oxidatively Cleavable Tritylthio and (4-Methoxytrityl)thio Groups
作者:Kohji Seio、Eri Utagawa、Mitsuo Sekine
DOI:10.1002/hlca.200490207
日期:2004.9
The newprotectinggroups 1a,b and 2a,b were developed for the 5′-OH group of deoxynucleosides by utilizing the unique characters of the sulfenate and sulfenamide linkage. These newprotectinggroups have a 2-(hydroxymethyl)benzoyl or 2-[(methylamino)methyl]benzoyl skeleton whose hydroxy O-atom or amino N-atom was blocked with a tritylthio-type substituent. They are removable by intramolecular cyclization
[EN] NOVEL SUBSTITUTED ARYL DERIVATIVES, THEIR PROCESS OF PREPARATION AND THEIR THERAPEUTICAL USES AS ANTI-HIV AGENTS<br/>[FR] NOUVEAUX DÉRIVÉS ARYLES SUBSTITUÉS, LEUR PROCÉDÉ DE PRÉPARATION ET LEURS UTILISATIONS THÉRAPEUTIQUES EN TANT QU'AGENTS ANTI-VIH
申请人:CELLVIR
公开号:WO2010066847A1
公开(公告)日:2010-06-17
The present invention concerns novel substituted aryl derivatives, their process of preparation and their use for inhibiting virus replication and for treating viral diseases or disorders such as HIV and/or HCV infection.
POLYCYCLIC HETEROARYL SUBSTITUTED TRIAZOLES USEFUL AS AXL INHIBITORS
申请人:Singh Rajinder
公开号:US20110105511A1
公开(公告)日:2011-05-05
Polycyclic heteroaryl substituted triazoles and pharmaceutical compositions containing the compounds are disclosed as being useful in inhibiting the activity of the receptor protein tyrosine kinase Axl. Methods of using the compounds in treating diseases or conditions associated with Axl activity are also disclosed.
Compounds of Formulae I′ and I are described, which are useful as stimulators of sGC, particularly NO-independent, heme-dependent stimulators. These compounds are also useful for treating, preventing or managing various disorders that are herein disclosed.