The synthesis method of new 3,4-positioned fused tricyclic indole derivatives or benzofuran compounds, and the provision of a new pharmaceutical composition. The method is exemplified by the preparation of 6a from the compound represented by 5a as shown below. The synthesis method includes the steps of contacting 5a with a catalyst containing platinum in a solvent to form a π-allyl platinum intermediate via Friedel-Crafts reaction, and as a second step, reacting the π-allyl platinum intermediate with a base in an intramolecular allylic amination reaction or intramolecular allylic oxidation reaction to close the ring and obtain 6a.【Selected drawing】Figure 1
Phenotyping Reveals Targets of a Pseudo‐Natural‐Product Autophagy Inhibitor
作者:Daniel J. Foley、Sarah Zinken、Dale Corkery、Luca Laraia、Axel Pahl、Yao‐Wen Wu、Herbert Waldmann
DOI:10.1002/anie.202000364
日期:2020.7.20
Pseudo‐natural‐product (NP) design combines naturalproduct fragments to provide unprecedented NP‐inspired compounds not accessible by biosynthesis, but endowed with biological relevance. Since the bioactivity of pseudo‐NPs may be unprecedented or unexpected, they are best evaluated in target agnostic cell‐based assays monitoring entire cellular programs or complex phenotypes. Here, the Cinchona alkaloid
The synthesis method of new 3,4-positioned fused tricyclic indole derivatives or benzofuran compounds, and the provision of a new pharmaceutical composition. The method is exemplified by the preparation of 6a from the compound represented by 5a as shown below. The synthesis method includes the steps of contacting 5a with a catalyst containing platinum in a solvent to form a π-allyl platinum intermediate via Friedel-Crafts reaction, and as a second step, reacting the π-allyl platinum intermediate with a base in an intramolecular allylic amination reaction or intramolecular allylic oxidation reaction to close the ring and obtain 6a.【Selected drawing】Figure 1
1,10-Phenanthroline-Catalyzed Tandem Reaction of 2-Iodoanilines with Isothiocyanates in Water
The 1,10-phenanthroline-catalyzedtandemreaction of 2-iodoaniline with isothiocyanate in water is described, which provides an environmentally benign, efficient and simple route for the preparation of 2-aminobenzothiazoles. The present tandem process shows broad substrate scope in the absence of transition metals and phase-transfer catalysts.
作者:Hannah Lingard、Jeongmin T. Han、Amber L. Thompson、Ivanhoe K. H. Leung、Richard T. W. Scott、Sam Thompson、Andrew D. Hamilton
DOI:10.1002/anie.201309353
日期:2014.4.1
In the search for synthetic mimics of protein secondary structures relevant to the mediation of protein–protein interactions, we have synthesized a series of tetrasubstituted diphenylacetylenes that display β‐sheet structures in two directions. Extensive X‐ray crystallographic and NMR solution phase studies are consistent with these proteomimetics adopting sheet structures, displaying both hydrophobic
[EN] TRICYCLIC INHIBITORS OF POLY(ADP-RIBOSE) POLYMERASES<br/>[FR] INHIBITEURS TRICYCLIQUES DE POLY(ADP-RIBOSE) POLYMERASES
申请人:AGOURON PHARMA
公开号:WO2000042040A1
公开(公告)日:2000-07-20
Compounds of formula (I) are poly(ADP-ribosyl)transferase (PARP) inhibitors, and are useful as therapeutics in treatment of cancers and the amelioration of the effects of stroke, head trauma, and neurodegenerative disease. As cancer therapeutics, the compounds of the invention may be used, e.g., in combination with cytotoxic agents and/or radiation.