New acetylenic furan derivatives: synthesis and anti-inflammatory activity
作者:Gilson Zeni、Diogo S Lüdtke、Cristina W Nogueira、Rodrigo B Panatieri、Antonio L Braga、Claudio C Silveira、Hélio A Stefani、Joao B.T Rocha
DOI:10.1016/s0040-4039(01)01984-0
日期:2001.12
A series of acetylenic furan derivatives have been synthesized via Pd-catalyzed coupling reactions of 2-(alkyltelluro)furan with several terminal alkynes. These compounds showed good anti-inflammatory activity in the carrageenin-induced rat paw edema assay. This represents a new and efficient method for the synthesis of pharmacologically active compounds.
Copper-Catalyzed Cross- and Carbonylative Coupling Reactions of Alkynyliodonium Salts with Organoboronic Acids and Organostannanes
作者:Chan-Mo Yu、Jae-Hong Kweon、Pil-Su Ho、Sin-Cheol Kang、Gong Yeal Lee
DOI:10.1055/s-2005-918934
日期:——
Copper-catalyzed cross- and carbonylative coupling reactions have been achieved in the reaction of a variety of alkynyliodonium salts with arylboronic acids and organostannanes under the mild reaction conditions in high yield. Our investigation shows that the alkynylidonium tetrafluoroborates are more efficient than those of triflates and tosylates.
[EN] COMPOSITIONS AND METHODS USING THE SAME FOR TREATMENT OF NEURODEGENERATIVE AND MITOCHONDRIAL DISEASE<br/>[FR] COMPOSITIONS ET PROCEDES LES UTILISANT POUR LE TRAITEMENT DE MALADIE NEURODEGENERATIVE ET MITOCHONDRIALE
申请人:MITOKININ LLC
公开号:WO2015123365A1
公开(公告)日:2015-08-20
The present disclosure is directed, in part, to compounds, or pharmaceutically acceptable salts thereof, for the treatment and/or prevention of neurodegenerative disease and/or mitchonodrial disease including Parkinson's disease and Leigh's disease.
Remarkable Ligand Effect on Rh-Catalyzed C–H-Active [3 + 2] Annulation of Ketimines and Alkynes
作者:Yan Shi、Yong Fang、Xu Zhao、Chengfeng Zhu、Xiang Wu、Xiaoming Yang、Yunfei Luo
DOI:10.1021/acs.orglett.0c01768
日期:2020.6.19
Externally added ligands were first found to have a significant impact on the Rh-catalyzed C–H-active [3 + 2] annulation of ketimines and alkynes. Olefin ligands have shown remarkable promotion effect for this reaction. The olefin promoted the reaction by increasing both the turnover rate and conversion of [Cp*RhCl2]2 in the formation of rhodacycle in the C–H activation step.
Dative Directing Group Effects in Ti-Catalyzed [2+2+1] Pyrrole Synthesis: Chemo- and Regioselective Alkyne Heterocoupling
作者:Hsin-Chun Chiu、Xin Yi See、Ian A. Tonks
DOI:10.1021/acscatal.8b04669
日期:2019.1.4
found to play a key role in controlling the regioselectivity of alkyne insertion and [2+2] cycloaddition in Ti-catalyzed [2+2+1] pyrrole synthesis and Ti-catalyzed alkyne hydroamination. TMS-protected alkynes with pendent Lewis basic groups can invert the regioselectivity of TMS-protected alkyne insertion, leading to the selective formation of highlysubstituted 3-TMS pyrroles. The competency of various