[EN] A CONJUGATE OF A TUBULYSIN ANALOG WITH BRANCHED LINKERS<br/>[FR] CONJUGUÉ D'UN ANALOGUE DE TUBULYSINE AVEC DES LIEURS RAMIFIÉS
申请人:HANGZHOU DAC BIOTECH CO LTD
公开号:WO2019127607A1
公开(公告)日:2019-07-04
The present invention relates to the conjugation of a tubulysin analog compound to a cell-binding molecule with branched/side-chain linkers for having better delivery of the conjugate compound and targeted treatment of abnormal cells. It also relates to a branched-linkage method of conjugation of a tubulysin analog molecule to a cell-binding ligand, as well as methods of using the conjugate in targeted treatment of cancer, infection and autoimmune disease.
Silver Hexafluoroantimonate-Catalyzed Three-Component [2+2+1] Cycloadditions of Allenoates, Dual Activated Olefins, and Isocyanides
作者:Jian Li、Yuejin Liu、Chunju Li、Xueshun Jia
DOI:10.1002/adsc.201000795
日期:2011.4.18
The intermolecular [2+2+1] multicomponent cycloadditions from readily available allenoates, dual activated olefins and isocyanides catalyzed by silver hexafluoroantimonate were studied. This protocol allowed the syntheses of highly functionalized five‐membered carbocycles with exclusive regioselectivity and stereoselectivity in an efficient and atom‐economical manner.
Multicomponent Reaction to Construct Spirocyclic Oxindoles with a Michael (Triple Michael)/Cyclization Cascade Sequence as the Key Step
作者:Jian Li、Ning Wang、Chunju Li、Xueshun Jia
DOI:10.1002/chem.201104071
日期:2012.7.27
new strategy to access highly unusual tricyclic oxindoles. From a synthetic point of view, this protocol is very interesting considering the high level of complexity reached in one step. The mechanism is thought to proceed by a tripleMichael/cyclization process by using allenoate as a three carbon atom component (3 C). Furthermore, multicomponentreaction with γ‐substituted allenoate also results in
Aryltriolborates as Air- and Water-Stable Bases for Wittig Olefination
作者:Wenhua Huang、Shuang-Hong Zhao、Ning Xu
DOI:10.1055/s-0034-1378919
日期:——
1-tris(hydroxymethyl)ethane, and aqueous tetrabutylammonium hydroxide. The aryltriolborates can be used as bases in Wittigreactions of aromatic aldehydes with all three types of phosphorus ylides: stabilized and semistabilized ylides can be generated at room temperature, and nonstabilizedylides at 120 °C (bath temperature). Tetrabutylammonium aryltriolborates have been synthesized in 37–66% yield by a one-pot
acids can be subjected to a combined Suzuki coupling–Wittig olefination in their reaction with arene halides and conjugated phosphoranes. Also, the transformations can be carried out under ultrasonication in a biphasic medium of aq. Na2CO3 and hexane–ether, where phosphoniumsalts are used as the starting materials.
甲酰芳基硼酸和甲酰戊烯基硼酸在与芳烃的反应中可以进行合并的Suzuki偶联-Wittig烯化反应 卤化物 和共轭 磷烷。同样,可以在以下条件下进行转换超音波在双相水溶液中。Na 2 CO 3和正己烷–醚,其中phospho盐用作起始原料。