Selective Synthesis of Dihydrophenanthridine and Phenanthridine Derivatives from the Cascade Reactions of <i>o</i>-Arylanilines with Alkynoates through C–H/N–H/C–C Bond Cleavage
作者:Yuanshuang Xu、Caiyun Yu、Xinying Zhang、Xuesen Fan
DOI:10.1021/acs.joc.1c00256
日期:2021.4.16
unprecedented selective synthesis of dihydrophenanthridine and phenanthridinederivatives through the cascade reactions of 2-arylanilines with alkynoates is presented. Mechanistic studies showed that the formation of the dihydrophenanthridine scaffold involves an initial C(sp2)–H alkenylation of 2-arylaniline with alkynoate followed by an intramolecular aza-Michael addition. When this reaction is carried out
Prodrugs of imidazole carboxylic acids as angiotensin II receptor
申请人:E. I. Du Pont de Nemours and Company
公开号:US05310929A1
公开(公告)日:1994-05-10
Prodrugs of imidazole carboxylic acids which are AII antagonists useful in treating hypertension, pharmaceutical compositions thereof and a method of treating hypertension using such prodrugs are disclosed.
Provided are sulfonamide derivatives of a specific chemical structure in which a sulfonamide group having, as a substituent, a phenyl group or a heterocyclic group having a hetero atom(s) as a constituent element(s) is present at its terminal, and pharmaceutically acceptable salts thereof. These compounds are novel compounds having excellent α4 integrin-inhibitory action.
SULFONAMIDE DERIVATIVE AND PHARMACEUTICAL USE THEREOF
申请人:Ajinomoto Co., Inc.
公开号:US20160244451A1
公开(公告)日:2016-08-25
Provided is a sulfonamide derivative represented by the following general formula (1) and having an α4 integrin inhibitory effect with high selectivity with a low effect on α4β1 and a high effect on α4β7, or a pharmaceutically acceptable salt thereof (in the general formula (1), A, B, D, E, R
41
, and a to h are as described in the description).
Ultrasound-Mediated Three-Component Reaction “On-Water” Protocol For the Synthesis of Novel Mono- and bis-1,3-Thiazin-4-one Derivatives
作者:Wael A. A. Arafa、Ashraf M. Mohamed、Ahmed F. Abdel-Magied
DOI:10.3987/com-17-13726
日期:——
Green synthetic and catalyst-free strategy towards the synthesis of novel mono- and bis-1,3-thiazin-4-one scaffolds through a one pot, reaction of carbon disulfide, monoacetylenic esters and amines ...