Commercial Manufacturing of Propofol: Simplifying the Isolation Process and Control on Related Substances
摘要:
A commercially viable manufacturing process for propofol (1) is described. The process avoids acid-base neutralization events during isolation of intermediate, 2,6-di-isopropylbenzoic acid (3) and crude propofol, and thus simplifies the synthesis on industrial scale to a considerable extent. Syntheses of five impurities/related substances (USP and EP) are also described.
Commercial Manufacturing of Propofol: Simplifying the Isolation Process and Control on Related Substances
摘要:
A commercially viable manufacturing process for propofol (1) is described. The process avoids acid-base neutralization events during isolation of intermediate, 2,6-di-isopropylbenzoic acid (3) and crude propofol, and thus simplifies the synthesis on industrial scale to a considerable extent. Syntheses of five impurities/related substances (USP and EP) are also described.
[EN] LONG SHELF LIFE STABLE ORGANORUTHENIUM COMPLEXES AS (PRE)CATALYSTS FOR OLEFIN METATHESIS<br/>[FR] COMPLEXES D'ORGANORUTHÉNIUM STABLES À LONGUE DURÉE DE CONSERVATION EN TANT QUE (PRÉ)CATALYSEURS POUR LA MÉTATHÈSE D'OLÉFINES
申请人:[en]APEIRON SYNTHESIS S.A.
公开号:WO2022167944A1
公开(公告)日:2022-08-11
Embodiments in accordance with the present invention encompass an organorutheniumcompound of the formula I:(I)wherein X, Y, L1, L2, L3, R1and R2are as defined herein. Also disclosed herein are the use of organoruthenium compound of the formula I as (pre)catalysts for the olefin metathesis reactions, as well as to the process for carrying out the olefin metathesis reaction.