Palladium-Catalyzed Vicinal Amino Alcohols Synthesis from Allyl Amines by In Situ Tether Formation and Carboetherification
作者:Ugo Orcel、Jerome Waser
DOI:10.1002/anie.201500636
日期:2015.4.20
Vicinalaminoalcohols are important structural motifs of bioactive compounds. Reported herein is an efficient method for their synthesis based on the palladium‐catalyzed oxy‐alkynylation, oxy‐arylation, or oxy‐vinylation of allylic amines. High regio‐ and stereoselectivity were ensured through the in situformation of a hemiaminal tether using the cheap commercially available trifluoroacetaldehyde
Selective hydrosilylation of N-allylimines using a (3-iminophosphine)palladium precatalyst
作者:Hosein Tafazolian、Joseph A. R. Schmidt
DOI:10.1039/c5cy01859e
日期:——
Hydrosilylation utilizing a (3-iminophosphine)palladium catalyst leads to the selective reduction of the imine unit of allylimines.
利用(3-亚磷腙基)钯催化剂进行氢硅烷基化反应,可以选择性地还原烯丙基亚胺中的亚胺基团。
Lactam-Based HDAC Inhibitors for Anticancer Chemotherapy: Restoration of RUNX3 by Posttranslational Modification and Epigenetic Control
作者:Misun Cho、Eunhyun Choi、Jae Hyun Kim、Hwan Kim、Hwan Mook Kim、Jang Ik Lee、Ki-Chul Hwang、Hyun-Jung Kim、Gyoonhee Han
DOI:10.1002/cmdc.201300393
日期:2014.3
transcription factor 3 (RUNX3) are regulated by histone deacetylase (HDAC). HDAC inhibition alters epigenetic and posttranslational stability of RUNX3, leading to tumor suppression. However, HDACinhibitors can nonselectively alter global gene expression through chromatin remodeling. Thus, lactam‐based HDACinhibitors were screened to identify potent protein stabilizers that maintain RUNX3 stability by acetylation
Property-Based Optimization of Hydroxamate-Based γ-Lactam HDAC Inhibitors to Improve Their Metabolic Stability and Pharmacokinetic Profiles
作者:Eunhyun Choi、Chulho Lee、Misun Cho、Jeong Jea Seo、Jee Sun Yang、Soo Jin Oh、Kiho Lee、Song-Kyu Park、Hwan Mook Kim、Ho Jeong Kwon、Gyoonhee Han
DOI:10.1021/jm3009376
日期:2012.12.13
Hydroxamate-based HDAC inhibitors have promising anticancer activities but metabolic instability and poor pharmacokinetics leading to poor in vivo results. QSAR and PK studies of HDAC inhibitors showed that a gamma-lactam core and a modified cap group, including halo, alkyl, and alkoxy groups with various carbon chain linkers, improved HDAC inhibition and metabolic stability. The biological properties of the gamma-lactam HDAC inhibitors were evaluated; the compound designated 8f had potent anticancer activity and high oral bioavailability.
One-Pot Three-Component Synthesis of Vicinal Diamines via In Situ Aminal Formation and Carboamination
作者:Ugo Orcel、Jerome Waser
DOI:10.1002/anie.201607318
日期:2016.10.4
A synthesis of vicinal diamines via in situ aminalformation and carboamination of allyl amines is reported. Employing highly electron‐poor trifluoromethyl aldimines in their stable hemiaminal form was key to enable both a fast and complete aminalformation as well as the palladium‐catalyzed carboamination step. The conditions developed allow the introduction of a wide variety of alkynyl, vinyl, aryl