The present invention provides compounds having formula (I): (I) wherein n, R
1
-R
5
, R
a
-R
b
, Q, Y
1
and Y
2
are as defined herein; and additionally provides methods for the synthesis thereof, compositions thereof, and methods for the use thereof in the treatment of various disorders including cancer, metastasis and disorders involving increased angiogenesis.
Molybdenum-Catalyzed Hydroxyl-Directed <i>Anti</i>-Dihydroxylation of Allylic and Homoallylic Alcohols
作者:Pei Fan、Shixia Su、Chuan Wang
DOI:10.1021/acscatal.8b01449
日期:2018.8.3
A catalytic hydroxyl-directed anti-dihydroxylation of allylic and homoallylic alcohols has been developed. This operationally simple method was successfully applied to the direct anti-monodihydroxylation of allylic alcohols containing at least one distal olefinic unit. Under the catalysis of commercially available MoO2(acac)2, an array of hydroxylated dienes were successfully converted into various
作者:Luca Deiana、Yan Jiang、Carlos Palo-Nieto、Samson Afewerki、Celia A. Incerti-Pradillos、Oscar Verho、Cheuk-Wai Tai、Eric V. Johnston、Armando Córdova
DOI:10.1002/anie.201310216
日期:2014.3.24
Herein is described a versatile and broad synergistic strategy for expansion of chemical space and the synthesis of valuable molecules (e.g. carbocycles and heterocycles), with up to three quaternary stereocenters, in a highly enantioselective fashion from simple alcohols (31 examples, 95:5 to >99.5:0.5 e.r.) using integrated heterogeneousmetal/chiralaminemultiplerelaycatalysis and air/O2 as the terminal
本文描述了一种通用的,广泛的协同策略,用于扩展化学空间和合成有价值的分子(例如碳环和杂环),并具有多达三个四级立体中心,以对映体的方式从简单的醇类中高度选择性(31例,95:5至> 99.5:0.5 er),使用集成的多相金属/手性胺多重中继催化,并将air / O 2用作末端氧化剂。一种新型的高度1,4-选择性多相金属/胺共催化的烯醛加氢反应也被添加到中继催化序列中。
Efficient and Highly Enantioselective Aerobic Oxidation–Michael–Carbocyclization Cascade Transformations by Integrated Pd(0)-CPG Nanoparticle/Chiral Amine Relay Catalysis
highly diastereo- and enantioselective aerobic oxidation–Michael–carbocyclization cascadetransformations by integrated heterogeneous Pd(0)-CPG nanoparticle/chiral amine relay catalysis are disclosed. The heterogeneous Pd(0)-CPG nanoparticle catalysts were efficient for both the sequential aerobic oxidation and dynamic kinetic asymmetric Michael–carbocyclization transformations, resulting in 1) oxidation