Process facilitating the regeneration of a catalyst based on a zeolite used in an acylation reaction, catalyst and use
申请人:——
公开号:US20020120169A1
公开(公告)日:2002-08-29
The present invention relates to a process facilitating the regeneration of a catalyst based on a zeolite, employed in an acylation reaction.
Another subject of the invention is a process for acylation of an aromatic ether, comprising, in a preferred alternative form, an additional stage of regeneration of the catalyst.
The process of the invention, which makes it possible to regenerate more easily a catalyst based on a zeolite, employed in an acylation reaction, is characterized in that the zeolite is modified by addition of an effective quantity of at least one metallic element M chosen from the elements of group 8 of the Periodic Classification of the elements.
[EN] HISTONE METHYLTRANSFERASE INHIBITORS<br/>[FR] INHIBITEURS DE L'HISTONE MÉTHYLTRANSFÉRASE
申请人:GLOBAL BLOOD THERAPEUTICS INC
公开号:WO2018119208A1
公开(公告)日:2018-06-28
The present disclosure provides certain angular tricyclic compounds that are histone methyltransi erases G9a and/or GLP inhibitors and are therefore useful for the treatment of diseases treatable by inhibition of G9a and/or GLP such as cancers and hemoglobinpathies (e.g., beta- thalassemia and sickle cell disease). Also provided are pharmaceutical compositions containing such compounds and processes for preparing such compounds.
Straightforward synthesis of tetraalkynylpyrazines and their photophysical properties
作者:Andranik Petrosyan、Peter Ehlers、Annette-E. Surkus、Tariel V. Ghochikyan、Ashot S. Saghyan、Stefan Lochbrunner、Peter Langer
DOI:10.1039/c5ob02083b
日期:——
Tetrafold Sonogashira reactions of tetrachloropyrazine were investigated to provide a one-step synthesis of various tetraalkynylpyrazines.
四倍Sonogashira反应对四氯吡啶进行了研究,以提供各种四炔基吡啶的一步合成。
METHODS FOR PREPARING FAVIPIRAVIR
申请人:Weaver Labs, LLC
公开号:US20210355090A1
公开(公告)日:2021-11-18
The present invention provides methods for preparing Favipiravir (6-fluoro-3-hydroxypyrazine-2-carboxamide).
本发明提供了制备法匹拉韦(6-氟-3-羟基吡嗪-2-甲酰胺)的方法。
Cyanatothiomethylthio pyrazines
申请人:The Dow Chemical Company
公开号:US04101546A1
公开(公告)日:1978-07-18
Compounds are prepared which correspond to the formula ##STR1## wherein n represents an integer of 0 to 3; p represents an integer of 0 to 2 and the sum of n + p is an integer of 0 to 3; and r is 0 or 1. These compounds have been found to be active as pesticides and find particular usage as fungicides, bactericides, nematocides and herbicides.