METHOD OF PREPARATION OF IMIPRAMINE PAMOATE AND NOVEL CRYSTALLINE FORM OF IMIPRAMINE PAMOATE THEREOF
申请人:R L Fine Chem
公开号:US20150225349A1
公开(公告)日:2015-08-13
The present invention is in relation to preparation of Imipramine Pamoate by a simple two-step process. The process provides new form of Imipramine Pamoate. The present invention is cost effective, involves mild conditions to beget said compound.
Iron-catalyzedasymmetricoxidative dearomatization of methylenebis(arenol)s, readily prepared from salicyl alcohol and naphthol derivatives under microwave irradiation, was developed using dioxygen in air as an oxidant. Various enantioenriched spirocyclic compounds were obtained with up to 89% chemical yield and 87% ee.
使用空气中的双氧作为氧化剂,开发了铁催化的亚甲基双(芳烃醇)的不对称氧化脱芳构化,在微波辐射下很容易从水杨醇和萘酚衍生物制备。以高达 89% 的化学产率和 87% 的 ee 获得了各种对映体富集的螺环化合物。
US9334240B2
申请人:——
公开号:US9334240B2
公开(公告)日:2016-05-10
[EN] ION CHANNEL ANTAGONISTS/BLOCKERS AND USES THEREOF<br/>[FR] ANTAGONISTES/BLOQUEURS DES CANAUX IONIQUES ET LEURS UTILISATIONS
申请人:SHANGHAI EAST HOSPITAL
公开号:WO2021114313A1
公开(公告)日:2021-06-17
Provided are ion channel antagonists/blockers and uses thereof. Specifically, it provides the compounds of formula (I) or pharmaceutically acceptable salts, stereoisomers, solvates or prodrugs, preparation method therefor and application thereof. Definition of each group in the formula can be found in the specification for details. Provided is also pharmaceutical composition useful for treatment of heart disease and other ion channel related diseases.
Reaction of spironaphthalenones with hydroxylamine: Part I. A reinvestigation of the mechanism
作者:Tirumalai R. Kasturi、Srirangam K. Jayaram、Palle V.P. Pragnacharyulu、Jitendra A. Sattigeri、Gowravaram M. Reddy、Kaipenchery A. Kumar
DOI:10.1016/s0040-4020(01)80511-1
日期:1993.1
Spironaphthalenones 1b–g on reaction with hydroxylamine hydrochloride gave the expected pyrrolotropones 2b–g. Furanotropone 6, postulated as an intermediate in the formation of pyrrolotropones, remained unchanged on reaction with hydroxylamine hydrochloride in ethanol. Reaction of unsymmetrical spironaphthalenones 1h–o with NH2OH.HCl gave the rearranged pyrrolotropones 2h–o.