Synthesis and kinetic resolution of <i>N</i>-Boc-2-arylpiperidines
作者:Edward J. Cochrane、Daniele Leonori、Lorraine A. Hassall、Iain Coldham
DOI:10.1039/c4cc04576a
日期:——
An efficient kinetic resolution of 2-arylpiperidines was developed using a chiral base.
开发了一种使用手性碱的高效动力学拆分2-芳基哌啶的方法。
Preparation of novel analogs of 2-arylpiperidines and evaluation of their sigma receptor binding affinities
作者:Grant D. Walby、Stephen F. Martin
DOI:10.1016/j.ejmech.2022.114310
日期:2022.5
identified as high affinity ligands for the two known sigma receptors σ1R and σ2R/TMEM97, and some norbenzomorphans that are selective for σ2R/TMEM97 exhibit promise in animal models of several neurological disorders. Toward further assessing the effects of simplifying the norbenzomorphan scaffold, sets of 6-membered heterocycles were designed and prepared, and their binding affinities for σ1R and σ2R/TMEM97
DNA-Damaging Steroidal Alkaloids from <i>Eclipta</i> <i>alba</i> from the Suriname Rainforest
作者:Maged S. Abdel-Kader、Brian D. Bahler、Stan Malone、Marga C. M. Werkhoven、Frits van Troon、David、Jan H. Wisse、Isia Bursuker、Kim M. Neddermann、Stephen W. Mamber、David G. I. Kingston
DOI:10.1021/np970561c
日期:1998.10.1
Bioassay-guided fractionation of the MeOH extract of Ecliptaalba using three yeast strains (1138, 1140, and 1353) resulted in the isolation of eight bioactive steroidalalkaloids (1-8), six of which are reported for the first time from nature. The major alkaloid was identified as (20S)(25S)-22,26-imino-cholesta-5,22(N)-dien-3beta-ol (verazine, 3), while the new alkaloids were identified as 20-epi-3-dehydroxy-3-oxo-5
Endocyclic 1-azaallyl anions engage allyl acetates in a palladium-catalyzedallylation followed by reduction to give unprotected 2-(hetero)aryl-3-allylpiperidines and 2-allyl-3-arylmorpholines, products not easily accessible by other means. The allyl group is then readily transformed into a variety of functional groups. Preliminary studies on the asymmetric variant of the reaction using an enantiomerically