Gold(I)‐Catalyzed Selective Cyclization and 1,2‐Shift to Prepare Pseudorutaecarpine Derivatives
作者:Wang Wang、Nan‐Ying Chen、Pei‐Sen Zou、Li Pang、Dong‐Liang Mo、Cheng‐Xue Pan、Gui‐Fa Su
DOI:10.1002/adsc.202101054
日期:2022.2.15
pseudorutaecarpine derivatives were prepared in good to excellent yields through a gold(I)-catalyzed selective cyclization and 1,2-shift of N-alkynyl quinazolinone-tethered indoles. Mechanistic study revealed that spiroindolenines generated in situ by cyclization at the the indole C3 position underwent an alkenyl 1,2-shift to generate pseudorutaecarpine. The reaction proceeds under mild reaction conditions
One‐Pot Oxidation of Secondary Alcohols to
<i>α</i>
‐Hydroxy Ketones: Application to Synthesis of Oxoaplysinopsin D, E, F, & G
作者:Akshay S. Kulkarni、Eagala Ramesh、D. Srinivasa Reddy
DOI:10.1002/ejoc.202100184
日期:2021.4.22
A one‐pot method for the transformation of secondaryalcohols to α‐hydroxy ketones using pyridinium dichromate (PDC) at room temperature is described. The method was tested with a variety of hydantoin derivatives. As a direct application, total synthesis of four natural oxoaplysinopsins D, E, F and G was accomplished for the first time through a common dihydroxy intermediate.
Structure-Guided Design, Synthesis, and Biological Evaluation of (2-(1<i>H</i>-Indol-3-yl)-1<i>H</i>-imidazol-4-yl)(3,4,5-trimethoxyphenyl) Methanone (ABI-231) Analogues Targeting the Colchicine Binding Site in Tubulin
作者:Qinghui Wang、Kinsie E. Arnst、Yuxi Wang、Gyanendra Kumar、Dejian Ma、Stephen W. White、Duane D. Miller、Weimin Li、Wei Li
DOI:10.1021/acs.jmedchem.9b00706
日期:2019.7.25
10ab and 10bb in complex with tubulin confirmed their improved molecular interactions to the colchicine site. In vitro, biological studies showed that new ABI-231 analogues disrupt tubulinpolymerization, promote microtubule fragmentation, and inhibit cancer cell migration. In vivo, analogue 10bb not only significantly inhibits primary tumor growth and decreases tumor metastasis in melanoma xenograft
[EN] VIRAL REPLICATION INHIBITORS<br/>[FR] INHIBITEURS DE REPLICATION VIRALE
申请人:UNIV LEUVEN KATH
公开号:WO2013045516A1
公开(公告)日:2013-04-04
The present invention relates to a series of novel compounds, methods to prevent or treat viral infections in animals by using the novel compounds and to said novel compounds for use as a medicine, more preferably for use as a medicine to treat or prevent viral infections, particularly infections with RNA viruses, more particularly infections with viruses belonging to the family of the Flaviviridae, and yet more particularly infections with the Dengue virus. The present invention furthermore relates to pharmaceutical compositions or combination preparations of the novel compounds, to the compositions or preparations for use as a medicine, more preferably for the prevention or treatment of viral infections. The invention also relates to processes for preparation of the compounds.
One-pot sequential multicomponent reaction between <i>in situ</i> generated aldimines and succinaldehyde: facile synthesis of substituted pyrrole-3-carbaldehydes and applications towards medicinally important fused heterocycles
作者:Anoop Singh、Nisar A. Mir、Sachin Choudhary、Deepika Singh、Preetika Sharma、Rajni Kant、Indresh Kumar
DOI:10.1039/c8ra01637b
日期:——
An efficient sequential multi-component method for the synthesis of N-arylpyrrole-3-carbaldehydes has been developed. This reaction involved a proline-catalyzed direct Mannich reaction-cyclization sequence between succinaldehyde and in situ generated Ar/HetAr/indolyl-imines, followed by IBX-mediated oxidative aromatization in one-pot operation. The practical utility of this procedure is shown at gram-scale