Copper-Catalyzed Oxidative Carbamoylation of <i>N</i>
-Arylacrylamides with Hydrazinecarboxamides Leading to 2-(Oxindol-3-yl)acetamide<b>s</b>
作者:Zeng-Yang He、Jing-Yu Guo、Shi-Kai Tian
DOI:10.1002/adsc.201800012
日期:2018.4.3
radical carbamoylation/cyclization reaction of N‐arylacrylamides with hydrazinecarboxamides has been developed for facile access to 2‐(oxindol‐3‐yl)acetamides, which had been utilized as precursors in the synthesis of natural bioactive pyrrolidinoindolines. In the presence of 1 mol% of copper(II) carbonate and 4 equiv. of tert‐butyl hydroperoxide, a wide range of N‐arylacrylamides underwent highly regioselective
Synthesis, cytotoxicity, and in vivo antitumor activity study of parthenolide semicarbazones and thiosemicarbazones
作者:Xinxin Jia、Qi Liu、Shiyi Wang、Binglin Zeng、Guohua Du、Chen Zhang、Yan Li
DOI:10.1016/j.bmc.2020.115557
日期:2020.7
anticancer activities. In order to further improve its biological activity, a series of parthenolide semicarbazone or thiosemicarbazone derivatives was synthesized and evaluated for their anticancer activity. Derivatives were tested in vitro against 5 human tumor cell lines, and many of these showed higher cytotoxicity than parthenolide. Five compounds were further studied for their antitumoractivity in mice
Preparation of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles via chemoselective сyclocondensation of electrophilically activated nitroalkanes to (thio)semicarbazides or thiohydrazides
作者:Nicolai A. Aksenov、Nikolai A. Arutiunov、Nikita K. Kirillov、Dmitrii A. Aksenov、Alexander V. Aksenov、Michael Rubin
DOI:10.1007/s10593-020-02775-5
日期:2020.8
Unusual reaction proceeding via the electrophilic activation of nitroalkanes in the presence of polyphosphoric acid has been discovered. Subsequent nucleophilic attack with semicarbazides or thiosemicarbazides allows to access 2-amino-1,3,4-oxadiazoles and 2-amino-1,3,4-thiadiazoles, respectively.
[EN] DELIVERY OF THERAPEUTIC ALKALOID COMPOUNDS<br/>[FR] ADMINISTRATION DE COMPOSÉS ALCALOÏDES THÉRAPEUTIQUES
申请人:SENSORIUM THERAPEUTICS INC
公开号:WO2023076586A1
公开(公告)日:2023-05-04
Disclosed are prodrug compounds that can be converted to mesembrine under biologically relevant conditions, such as hydrolysis in vivo; and related methods of preparing and using these compounds. Stable preparations of isolated mesembrine stereoisomers are also provided.
Heterocyclic substituted triazolyl phosphorous compounds, insecticidal compositions containing them and method for controlling insects
申请人:THE DOW CHEMICAL COMPANY
公开号:EP0010891A1
公开(公告)日:1980-05-14
Pyridyl, pyridazinyl, pyrimidinyl and pyrazinyl substituted triazolyl phosphorothioates, insecticidal compositions containing them and method for controlling insects. These compounds and compositions are especially effective in controlling German cockroaches, cooling moth, Western spotted cucumber beetle, beet armyworm, tobacco budworm, green peach aphid and two spotted spider mite while having low toxicity to warm-blooded animals.