[EN] A PROCESS FOR THE PREPARATION OF TRIAZINE INTERMEDIATES AND A PROCESS FOR THE PREPARATION OF UV ABSORBERS THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRES DE TRIAZINE ET PROCÉDÉ DE PRÉPARATION D'ABSORBEURS UV ASSOCIÉS
申请人:BASF SE
公开号:WO2020144093A1
公开(公告)日:2020-07-16
The presently claimed invention relates to a novel, highly efficient and general process for the preparation of the triazine intermediates and their use in the preparation of UV absorbers.
ARTEMISINE (QINGHAOSU) DERIVATIVES, THEIR PREPARATION METHODS AND THEIR USE, AND PHARMACEUTICAL COMPOSITIONS CONTAINING THE SAME
申请人:Shanghai Institute of Materia Medica,
Chinese Academy of Sciences
公开号:EP1845099B1
公开(公告)日:2012-10-24
Resolution of (R, S)-ethyl-2-(4-hydroxyphenoxy) propanoate using lyophilized mycelium of Aspergillus oryzae WZ007
作者:Jian-Yong Zheng、Jia-Yu Wu、Yin-Jun Zhang、Zhao Wang
DOI:10.1016/j.molcatb.2013.07.016
日期:2013.12
The mycelium of Aspergillus oryzae WZ007 was successfully developed to kinetic resolution of (R, S)-ethyl-2-(4-hydroxyphenoxy) propanoate ((R, S)-EHPP) for production of (R)-ethyl-2-(4-hydroxyphenoxy) propanoate ((R)-EHPP). The key biocatalytic process parameters (pH, temperature, rotation speed and substrate concentration) were optimized. Under the optimum conditions, the optical purity of (R)-EHPP was improved up to >99% when the conversion was above 49%. A. oryzae WZ007 whole-cell lipase exhibited high reaction capacity, enantioselectivity and good reusability. The tolerable substrate concentration was 0.5 mol/L, and dry mycelium of A. oryzae WZ007 maintains over 80% of its initial activity after eight repeating cycles. Therefore the enzymatic preparation of (R)-EHPP route was suitable for industrial application. (C) 2013 Elsevier B.V. All rights reserved.
A PROCESS FOR THE PREPARATION OF TRIAZINE INTERMEDIATES AND A PROCESS FOR THE PREPARATION OF UV ABSORBERS THEREOF
申请人:BASF SE
公开号:EP3908633A1
公开(公告)日:2021-11-17
Artemisinin (Qinghaosu) Derivatives, Their Preparation Methods And Their Use, And Pharmaceutical Compositions Containing The Same
申请人:Li Ying
公开号:US20080139642A1
公开(公告)日:2008-06-12
The invention provides a type of artemisinin derivatives having following structure I, its preparation method and use, as well as a pharmaceutical composition containing such artemisinin derivatives and its use. The artemisinin derivatives of the present invention and their pharmaceutical composition containing the artemisinin derivatives. have immunosuppressive activities and can be used more safely. The composition which comprises the artemisinin derivatives can be formulated into long-term dosage forms such as tablet, pellet and the like, and have wider productive and use value.