Free-radical mediated cyclopropane ringopening of 2-silylbicyclo[3.1.0]hexane 1 has been carried out leading to the corresponding trisubstituted cyclopentenes 5 and 6 in good yield with complete 1,2-stereocontrol. [3+2]-Annulation has also been performed by trapping the resulting radical with electron-rich and electron-poor olefins, leading to the corresponding polycyclic compounds. Further studies
Total synthesis of ibogaine, epiibogaine and their analogues
作者:Goutam Kumar Jana、Surajit Sinha
DOI:10.1016/j.tet.2012.06.027
日期:2012.9
Efficient total synthesis of ibogaine, epiibogaine and their analogues has been described. An intramolecular reductive-Heck type cyclization was used for the construction of seven-membered indoloazepine ring to access iboga-skeleton. Larock’s heteroannulation reaction was employed for the creation of suitably substituted indole and Diels–Alder reaction was employed for the construction of the isoquinuclidine
2-Azabicyclo[2.1.1]hexanes. 2. Substituent Effects on the Bromine-Mediated Rearrangement of 2-Azabicyclo[2.2.0]hex-5-enes
作者:Grant R. Krow、Yoon B. Lee、Walden S. Lester、Nian Liu、Jing Yuan、Jingqi Duo、Seth B. Herzon、Yen Nguyen、David Zacharias
DOI:10.1021/jo0015570
日期:2001.3.1
and some allylic bromide 10. Both unrearranged 5-endo,6-exo-dibromo-2-azabicyclo[2.2.0]hexanes 8 and rearranged 5-anti-6-anti-dibromo-2-azabicyclo[2.1.1]hexanes 9 are formed stereoselectively. The dibromoazabicyclo[2.1.1]hexanes 9 have been reductively debrominated to afford the first reported 2-azabicyclo[2.1.1]hexanes 11 with alkyl or aryl substituents at C-3.
[EN] COMPOSITIONS AND METHODS FOR PARASITE CONTROL<br/>[FR] COMPOSITIONS ET PROCÉDÉS DE LUTTE CONTRE LES PARASITES
申请人:PHILIP MORRIS PRODUCTS SA
公开号:WO2021260029A1
公开(公告)日:2021-12-30
The present invention relates in its broadest aspect to a compound of Formula I as provided herein, formulations comprising such a compound and corresponding uses thereof for the reduction of infestation with ectoparasites, in particular ectoparasites of the insect class, including fleas and mosquitoes and/or ectoparasites of the arachnid class, including ticks and mites, etc. Also provided herein are methods for preparing the formulations of the invention and methods for controlling ectoparasites using the compounds and/or formulations provided herein.
Disclosed are novel compounds that are A
2B
adenosine receptor antagonists having the following structure:
wherein R
1
and R
2
are independently chosen from hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, and optionally substituted heteroaryl, and R
4
is an optionally substituted heteroaryl moiety. The compounds of the invention are useful for treating various disease states, including asthma, chronic obstructive pulmonary disorder, pulmonary inflammation, emphysema, diabetic disorders, inflammatory gastrointestinal tract disorders, immunological/inflammatory disorders, cardiovascular diseases, neurological disorders, and diseases related to angiogenesis.