[EN] INDAZOLE- AND PYRROLOPYRIDINE-DERIVATIVE AND PHARMACEUTICAL USE THEREOF<br/>[FR] DÉRIVÉ D'INDAZOLE ET PYRROLOPYRIDINE ET UTILISATION PHARMACEUTIQUE DE CELUI-CI
申请人:DAINIPPON SUMITOMO PHARMA CO
公开号:WO2012169649A1
公开(公告)日:2012-12-13
The present invention relates to a novel indazole- or pyrrolopyridine-derivative, represented by the formula (1) below, that has an agonistic action or a partial agonistic action against serotonin-4 receptor, and a pharmaceutical composition comprising the same. Formula (1) [wherein each substituent is as defined in claim 1]
O(2), catalyzed by N-hydroxyphthalimide (NHPI) and Co(II) salt, leads undermildconditions to carbonyl derivatives (aldehydes, ketones, carboxylic acids, imides) whose distribution depends on the nature of the alkyl group and on the reaction conditions. Primary N-benzylamides lead to imides and aromatic aldehydes at room temperature without any appreciable amount of carboxylic acids, while under the
Mild Acetylation of Amides, Thioamides, Ureas, and Thioureas Using Methyl Bis(1-naphthyl)bismuthinate in Acetic Acid
作者:Takuji Ogawa、Kikuko Miyazaki、Hitomi Suzuki
DOI:10.1246/cl.1990.1651
日期:1990.9
Amides, thioamides, ureas, and thioureas were N-acetylated in good yield with acetic acid in the presence of methyl bis(1-naphthyl)bismuthinate at room temperature.
酰胺、硫代酰胺、脲和硫脲在室温下在双(1-萘基)铋酸甲酯存在下用乙酸以良好的收率N-乙酰化。
NHC-Catalyzed Intramolecular Redox Amidation for the Synthesis of Functionalized Lactams
A very efficient NHC-catalyzed lactamization reaction is reported. For most cases, the ringexpansion reaction proceeds to cleanly furnish five- and six-membered N-Ts and N-Bn lactams, without the need for further purification. Evidence is presented suggesting a dual role for the stoichiometric base: (1) deprotonation of the triazolium precatalyst and (2) activation of the nitrogen leaving group through
Mild, Metal-Free and Protection-Free Transamidation of N-Acyl-2-piperidones to Amino Acids, Amino Alcohols and Aliphatic Amines and Esterification of N-Acyl-2-piperidones
作者:Muthuraman Subramani、Saravana Kumar Rajendran
DOI:10.1002/ejoc.201900517
日期:2019.6.16
selective mild and metal‐free protocol for transamidation of N‐acyl piperidones to unprotected amino acids, amino alcohols and other aliphaticamines at short reaction times (30–45 min), with no additional base and at neat condition. Esterification of N‐acyl piperidones with aliphaticalcohols at 85 °C. Amide bond twist, τ = –20.39° and pyramidalization, χN = –11.73°.