A Single Lipase-Catalysed One-Pot Protocol Combining Aminolysis Resolution and Aza-Michael Addition: An Easy and Efficient Way to Synthesise β-Amino Acid Esters
was developed to obtain chiral β-amino acid esters with lipase B from Candida antarctica (CAL-B) as the only catalyst. This method is conducted under mild reaction conditions and is very easy to handle. After a series of detailed optimization studies, ten racemic aromatic or aliphatic amines were subjected to this one-pot procedure, and twelve chiral β-amino acid esters and ten chiral amides were successfully
开发了一种结合 aza-Michael 加成和氨解拆分的新型一锅法,以来自南极念珠菌 (CAL-B) 的脂肪酶 B 作为唯一催化剂获得手性 β-氨基酸酯。该方法在温和的反应条件下进行,非常容易操作。经过一系列详细的优化研究,10 种外消旋芳香族或脂肪族胺经过此一锅法处理,成功合成了 12 种手性 β-氨基酸酯和 10 种手性酰胺,其 ee 值在理论产率下具有优异的值。放大程序也没有明显降低反应速率或对映选择性,这使得该方法适用于手性 β-氨基酸酯的大规模生产。
MYLARI, BANAVARA L.;BEYER, THOMAS A.;SIEGEL, TODD W., J. MED. CHEM., 34,(1991) N, C. 1011-1018
作者:MYLARI, BANAVARA L.、BEYER, THOMAS A.、SIEGEL, TODD W.
DOI:——
日期:——
[EN] PYRIDAZINONE DERIVATIVES USEFUL AS T CELL ACTIVATORS<br/>[FR] DÉRIVÉS DE PYRIDAZINONE UTILES EN TANT QU'ACTIVATEURS DE LYMPHOCYTES T
申请人:[en]GOSSAMER BIO SERVICES, INC.
公开号:WO2023122778A1
公开(公告)日:2023-06-29
Disclosed herein are oxime compounds having the structure of Formula (I'): or a pharmaceutically acceptable salt, solvate, hydrate, isomer, tautomer, racemate, or isotope thereof, wherein L1, L2, R1, R2, R3, R4, R7, n, and r are as defined herein. Pharmaceutical compositions comprising them, processes for preparing them and uses of them to treat or prevent diseases, disorders and conditions are also provided. The compounds are inhibitors of one or both of diacylglycerol kinase alpha (DGKα) and diacylglycerol kinase zeta (DGKζ) and are useful in the treatment of diseases, disorders and conditions related to DGKα and / or DGKζ activity. In particular, the compounds are useful for treating viral infections and proliferative disorders, such as cancer.