Thionation of quinolizidine alkaloids and their derivatives via Lawesson’s reagent
作者:Alena V. Koval’skaya、Polina R. Petrova、Dmitry O. Tsypyshev、Alexander N. Lobov、Inna P. Tsypysheva
DOI:10.1080/14786419.2020.1868460
日期:2022.7.18
Abstract Direct thionation of quinolizidinealkaloids (-)-cytisine, methylcytisine, thermopsine and some of their carbonyl derivatives was realized. It was established that carrying out of the reaction in the boiling toluene with 0.5 eq. of Lawesson’s reagent (LR) is most effective for synthesis of thio analogues of methyl-, allyl-, benzylcytisine and thermopsine. It was found, that formation of thioamides
Inhibition of dengue viruses by N-methylcytisine thio derivatives through targeting viral envelope protein and NS2B-NS3 protease
作者:Chen-Sheng Lin、Chih-Hao Lu、Tsai-Hsiu Lin、Yan-Tung Kiu、Ju-Ying Kan、Yu-Jen Chang、Ping-Yi Hung、Alena V. Koval'skaya、Dmitry O. Tsypyshev、Inna P. Tsypysheva、Cheng-Wen Lin