Asymmetric Synthesis and Absolute Configuration Assignment of a New Type of Bedaquiline Analogue
作者:Chang-Jiang Qiao、Xiao-Kui Wang、Fei Xie、Wu Zhong、Song Li
DOI:10.3390/molecules201219846
日期:——
Bedaquiline is the first FDA-approved new chemical entity to fight multidrug-resistant tuberculosis in the last forty years. Our group replaced the quinoline ring with a naphthalene ring, leading to a new type of triarylbutanol skeleton. An asymmetric synthetic route was established for our bedaquiline analogues, and the goal of assigning their absolute configurations was achieved by comparison of experimental and calculated electronic circular dichroism spectra, and was confirmed by the combined use of circular dichroism and NMR spectroscopy.
Applications of Multicomponent Reactions for the Synthesis of Diverse Heterocyclic Scaffolds
作者:James D. Sunderhaus、Chris Dockendorff、Stephen F. Martin
DOI:10.1021/ol7018357
日期:2007.10.1
process involving sequential reactions of aldehydes, primary amines, acid chlorides, and nucleophiles has been developed to prepare multifunctional substrates that may be employed in subsequent ring-forming reactions to generate a diverse array of functionalized heterocyclic scaffolds. This new approach to diversity-oriented synthesis was then applied to the first total synthesis of the isopavine alkaloid
Facile syntheses of substituted, conformationally-constrained benzoxazocines and benzazocines via sequential multicomponent assembly and cyclization
作者:James J. Sahn、Stephen F. Martin
DOI:10.1016/j.tetlet.2011.10.022
日期:2011.12
subsequent cyclizations via Ullmann and Heck reactions to efficiently construct substituted 2,6-methanobenzo[b][1,5]oxazocines and 1,6-methanobenzo[c]azocines, respectively. The intramolecular Ullmann cyclization was conducted in tandem with an intermolecular arylation that enabled the rapid syntheses of a number of O-functionalized methanobenzoxazocines.
Asymmetric Allylation/RCM-Mediated Synthesis of Fluorinated Benzo-Fused Bicyclic Homoallylic Amines As Dihydronaphthalene Derivatives
作者:Daniel M. Sedgwick、Pablo Barrio、Antonio Simón、Raquel Román、Santos Fustero
DOI:10.1021/acs.joc.6b01590
日期:2016.10.7
Enantiomericallyenriched fluorinated benzo-fused bicyclic homoallylic amines have been synthesized through an asymmetricallylation/ring closing metathesis (RCM) sequence. This sequence has been carried out using α-trifluoromethylstyrene derivatives as key intermediates, synthesized by microwave radiation. The great deactivating effect exerted by such substituents has been brought to light by a comparative
Stereocontrolled Formation of Epoxy Peroxide FunctionalityAppended to a Lactam Ring
作者:Charles M. Marson、Afzal Khan、Rod A. Porter
DOI:10.1021/jo001313f
日期:2001.7.1
The action of tert-butylhydroperoxide and tin(IV) chloride upon allylic alcohols containing a lactam ring leads mainly to epoxy alkyl peroxides with high diastereoselection. Both the stereochemistry and the products formed are in marked contrast to the reactions of the analogous carbocyclic allylic alcohols with tert-butyl hydroperoxide-VO(acac)2.