A versatile total synthesis of epibatidine and analogs
摘要:
A racemic mixture of epibatidine, a potent analgesic alkaloid possessing a 7-azanorbornane structure, has been synthesized via a versatile four-step synthetic route: a Diels-Alder reaction of N-carbomethoxy pyrrole and phenylsulfonyl 6-chloro-3-pyridyl acetylene, followed by desulfonation, hydrogenation and deprotection of the amine. rac -Epibatidine was resolved to its d and l enantiomers.
7-azabicyclo[2.2.1]-heptane and -heptene derivatives as cholinergic
申请人:UCB S.A. - DTB
公开号:US06060473A1
公开(公告)日:2000-05-09
7-Azabicyclo[2.2.1]-heptane and -heptene derivatives are disclosed that can be administered to a mammal, including a human, to treat disorders associated with a decrease or increase in cholinergic activity.
Abstract A practicalsynthesis of epibatidine (1) was developed. The key step involved selective reduction of the 5,6-double bond of 7-(tert-butyloxy-carbonyl)-2-(2-chloro-5-pyridyl)-3-(phenylsulfonyl)-7-azabicyclo[2.2.1]-heptane-2,5-diene (4) using nickel boride.
Dealkenylative Alkynylation Using Catalytic Fe<sup>II</sup> and Vitamin C
作者:Manisha Swain、Thomas B. Bunnell、Jacob Kim、Ohyun Kwon
DOI:10.1021/jacs.2c05980
日期:2022.8.17
In this paper, we report the synthesis of alkyl-tethered alkynes through ozone-mediated and FeII-catalyzed dealkenylative alkynylation of unactivated alkenes in the presence of alkynyl sulfones. This one-pot reaction, which employs a combination of a catalytic FeII salt and l-ascorbicacid, proceeds under mild conditions with good efficiency, high stereoselectivity, and broad functional group compatibility
在本文中,我们报道了在炔基砜存在下,通过臭氧介导和 Fe II催化的未活化烯烃的脱烯基炔基化合成烷基链炔烃。这种一锅反应采用催化 Fe II盐和L-抗坏血酸的组合,在温和的条件下进行,具有良好的效率、高立体选择性和广泛的官能团兼容性。与我们之前的 Fe II介导的 α-甲氧基氢过氧化物还原断裂相比,Fe II催化的过程是通过对多个竞争自由基(氧化还原)途径进行彻底的动力学分析而设计的。我们强调了这种脱烯基炔基化通过复杂分子(包括天然产物和药物)的多次合成后转化和后期多样化的潜力。
[EN] 7-AZABICYCLO-[2.2.1]-HEPTANE AND -HEPTENE DERIVATIVES AS ANALGESICS AND ANTI-INFLAMMATORY AGENTS<br/>[FR] DERIVES DE 7-AZABICYCLO[2.2.1]-HEPTANE et -HEPTENE UTILISES COMME ANALGESIQUES ET AGENTS ANTI-INFLAMMATOIRES
申请人:UNIVERSITY OF VIRGINIA
公开号:WO1994022868A1
公开(公告)日:1994-10-13
(EN) 7-Azabicyclo[2.2.1]-heptane and -heptene derivatives with analgesic or anti-inflammatory activity are disclosed that can be administered to a mammal, including a human, to treat pain and inflammatory disorders. A method for the treatment of pain or inflammatory disorders is also presented that includes administering an effective amount of the compound or its pharmaceutically acceptable salt or derivative, or mixtures thereof, to a host in need of analgesic anti-inflammatory therapy, optionally in a pharmaceutically acceptable carrier or diluent.(FR) Sont décrits des dérivés de 7-Azabicyclo[2.2.1]-heptane et -heptène à activité analgésique ou anti-inflammatoire qui peuvent être administrés à un mammifère, notamment l'homme, pour traiter la douleur et les troubles inflammatoires. Est également décrit un procédé pour traiter la douleur ou les troubles inflammatoires, consistant à administrer une dose efficace du composé ou de son sel ou dérivé pharmaceutiquement acceptable ou des mélanges de ceux-ci, à un hôte nécessitant une thérapie anti-inflammatoire analgésique, éventuellement dans un excipient ou un diluant pharmaceutiquement acceptable.
disclose that can be administered to a mammal, including a human, to treat pain and inflammatory disorders. A method for the treatment of pain or inflammatory disorders is also presented that includes administering an effective amount of the compound or its pharmaceutically acceptable salt or derivative, or mixtures thereof, to a host in need of analgesic anti-inflammatory therapy, optionally in a pharmaceutically acceptable carrier or diluent.
[EN] 7-AZABICYCLO[2.2.1]-HEPTANE AND -HEPTENE DERIVATIVES AS CHOLINERGIC RECEPTOR LIGANDS<br/>[FR] DERIVES DE 7-AZABICYCLO[2.2.1]-HEPTANE ET -HEPTENE UTILISES COMME LIGANDS DES RECEPTEURS CHOLINERGIQUES
申请人:UNIVERSITY OF VIRGINIA
公开号:WO1996006093A1
公开(公告)日:1996-02-29
(EN) 7-Azabicyclo[2.2.1]-heptane and -heptene derivatives are disclosed that can be administered to a mammal, including a human, to treat disorders associated with a decrease or increase in cholinergic activity.(FR) Des dérivés de 7-azabicyclo[2.2.1]-heptane et -heptène peuvent être administrés à un mammifère, y compris l'homme, pour traiter les troubles associés à une augmentation ou une diminution de l'activité cholinergique.