3,4′-Linked bis(piperidines) related to the haliclonacyclamine class of marine alkaloids: synthesis using crossed-aldol chemistry and preliminary biological evaluations
作者:Martin G. Banwell、Mark J. Coster、Natasha L. Hungerford、Mary J. Garson、Stephen Su、Andrew C. Kotze、Murray H. G. Munro
DOI:10.1039/c1ob06418e
日期:——
Compounds 2–5, incorporating various elements of the 3,4′-bis(piperidine) core associated with the sponge-derived alkaloid haliclonacyclamine A (HA, 1), have been prepared through, inter alia, aldol-type reactions of N-substituted piperidin-4-ones and certainderivatives. Screening of these compounds in various assays, including an ecological one, reveals that compound 5 exhibits allelochemical properties
In Situ Generation and Intramolecular Schmidt Reaction of Keto Azides in a Microwave-Assisted Flow Format
作者:Thomas O. Painter、Paul D. Thornton、Mario Orestano、Conrad Santini、Michael G. Organ、Jeffrey Aubé
DOI:10.1002/chem.201100768
日期:2011.8.22
Go with the flow! A method for conversion of keto halides to lactams by means of sequential azidation and intramolecularSchmidtreaction in a combined flowformat is described (see scheme; MWI=microwave irradiation, TFA=trifluoroacetic acid).
Facile access to a heterocyclic, sp<sup>3</sup>-rich chemical scaffold via a tandem condensation/intramolecular nitrone–alkene [3+2] cycloaddition strategy
作者:M. J. Rawling、T. E. Storr、W. A. Bawazir、S. J. Cully、W. Lewis、M. S. I. T. Makki、I. R. Strutt、G. Jones、D. Hamza、R. A. Stockman
DOI:10.1039/c5cc05070g
日期:——
A heterocyclic, sp3-rich chemical scaffold was synthesised in just 6 steps via a highly regio- and diastereo-selective tandem nitrone formation/intramolecular nitrone-alkene [3+2] cycloaddition reaction. A library of 543 drug-like compounds...