Azulene-2-boronic acid pinacol ester was conveniently transformed into 2-substituted azulenes bearing carboxyl, formyl, ester, or amino groups, which are difficult to access by conventional methods. Furthermore, the azulene-2-carboxylic acid thus synthesized was subjected to the Ugi four-component condensation to obtain a dipeptide-type product containing an azulene skeleton.
Synthesis of Azulenopyridinones through Palladium‐Catalyzed Oxidative [4+2] Cyclization Reactions of
<i>N</i>
‐Methoxyazulene‐1‐ and 2‐carboxamides with Alkynes
作者:Gi Uk Han、Jeong‐Yu Son、Dahee Park、Hyeonsik Eom、Kyungsup Lee、Hee Chan Noh、Kooyeon Lee、Phil Ho Lee
DOI:10.1002/adsc.202000587
日期:2020.11.4
oxidative [4+2] cyclization reactions were developed from the C−H activation reaction of N‐methoxyazulene‐1‐ and 2‐carboxamides with symmetrical and unsymmetrical alkynes under a molecular oxygen atmosphere, producing azulenopyridinone derivatives with novel azulene skeletons in good to excellent yields with a wide substrate scope and excellent functional group tolerance.
申请人:KNU-Industry Cooperation Foundation 강원대학교산학협력단(220040088571) BRN ▼221-82-10213
公开号:KR20210100315A
公开(公告)日:2021-08-17
본 발명은 약리활성 및 생리활성을 갖는 천연물의 중요 골격 구조로 사용될 수 있는 신규 구조의 아줄렌 화합물 및 이의 제조방법에 관한 것으로, 보다 상세하게는 로듐 또는 이리듐 촉매 존재 하에 아줄렌 카복실산 화합물 및 알킨 화합물을 [4+2] 또는 [2+2+2] 고리화반응시켜 아줄레노락톤 화합물 또는 벤조[a]아줄렌 화합물을 제조하는 방법 및 이에 따라 제조된 아줄레노락톤 화합물 또는 벤조[a]아줄렌 화합물에 관한 것이다.
Iridium(III)-Catalyzed Sequential C(2)-Arylation and Intramolecular C–O Bond Formation from Azulenecarboxylic Acids and Diaryliodonium Salts Access to Azulenofuranones
作者:Chanyoung Maeng、Hyung Jin Seo、Haneal Jeong、Kyungsup Lee、Hee Chan Noh、Phil Ho Lee
DOI:10.1021/acs.orglett.0c02607
日期:2020.9.18
herein is the iridium-catalyzed sequential C(2)-arylation reaction and intramolecular C–O bond formationfrom azulenecarboxylic acids and diaryliodonium salts, leading to the formation of 3-arylazulenofuranones. The sequential reaction proceeded smoothly through generation of 2-arylazulene-1-carboxylic acids derived from the iridium-catalyzed regioselective C(2)-arylation reaction without the decarboxylation
Thienopyrrole compound and use thereof as HCV polymerase inhibitor
申请人:Mizojiri Ryo
公开号:US20060167246A1
公开(公告)日:2006-07-27
The present invention relates to a thienopyrrole compound represented by the following formula [I]
wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound as an active ingredient. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.