Orthogonal Synthesis of Indolines and Isoquinolines via Aryne Annulation
作者:Christopher D. Gilmore、Kevin M. Allan、Brian M. Stoltz
DOI:10.1021/ja0780582
日期:2008.2.6
exploiting the reactivity of arynes. Reaction of N-carbamoyl-functionalized enamine derivatives with benzyne affords substituted indolines. An orthogonal reactivity is uncovered when related enamine derivatives are modified as amides, such that isoquinolines are formed as the product of condensation with benzyne. This latter transformation is applied to a concise total synthesis of the opiate alkaloid papaverine
Gold-Catalyzed Ammonium Acetate Assisted Cascade Cyclization of 2-Alkynylarylketones
作者:Maciej E. Domaradzki、Yuhua Long、Zhigang She、Xiaochen Liu、Gan Zhang、Yu Chen
DOI:10.1021/acs.joc.5b01939
日期:2015.11.20
An ammonium acetate assisted gold-catalyzedcascadecyclization reaction of 2-alkynylarylketones is described. Under the reported conditions, a gold-catalyzed intramolecular cyclization of 2-alkynylarylketones takes place through two competing reaction mechanisms—a 5-exo-dig or a 6-endo-dig cyclization—leading to two regioisomeric intermediates: isobenzofuranium or isobenzopyrylium. In the presence
An efficient rhodium(III)-catalyzed C–H activation followed by intermolecular annulation between enamides and sulfoxonium ylides has been developed. The transformation proceeds smoothly with a broad range of substrates, affording a series of isoquinoline derivatives in moderate to good yields under additive-free conditions.
已经开发出一种高效的铑 ( III ) 催化的 C-H 活化,然后在烯酰胺和亚砜叶立德之间进行分子间成环。该转化可在多种底物中顺利进行,在无添加剂的条件下以中等至良好的产率提供一系列异喹啉衍生物。
Quinuclidine Compounds as Alpha-7 Nicotinic Acetylcholine Receptor Ligands
申请人:Cook, II James H.
公开号:US20100099684A1
公开(公告)日:2010-04-22
The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands for the nicotinic α7 receptor and may be useful for the treatment of various disorders of the central nervous system, especially affective and neurodegenerative disorders.
QUINUCLIDINE COMPOUNDS AS ALPHA-7 NICOTINIC ACETYLCHOLINE RECEPTOR LIGANDS
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:US20150094309A1
公开(公告)日:2015-04-02
The disclosure provides compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands for the nicotinic α7 receptor and may be useful for the treatment of various disorders of the central nervous system, especially affective and neurodegenerative disorders.