Reductive Alkylation of Amines with Carboxylic Ortho Esters
作者:Renat Kadyrov、Konrad Moebus
DOI:10.1002/adsc.202000510
日期:2020.8.19
carboxylic ortho esters could be used as an alkylating agent in the reductivealkylation of amines. A variety of amines, including amino acid esters, were alkylated affording mono‐alkylated products with high selectivity in practical to high yields using standard heterogeneous catalysts. By applying acyclic ortho esters alkylation was completed at room temperature.
[EN] PYRAZOLOPYRIMIDINES AS KINASE INHIBITORS<br/>[FR] INHIBITEURS DE KINASE SOUS FORME DE PYRAZOLOPYRIMIDINES
申请人:SMITHKLINE BEECHAM CORP
公开号:WO2004009602A1
公开(公告)日:2004-01-29
The present invention relates generally to inhibitors of the kinases and more particularly to novel pyrazolopyrimidine compounds.
本发明一般涉及激酶的抑制剂,更具体地涉及新型吡唑吡嘧啶化合物。
[EN] SUBSTITUTED PYRIDINES AS INHIBITORS OF DNMT1<br/>[FR] PYRIDINES SUBSTITUÉES EN TANT QU'INHIBITEURS DE DNMT1
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2017216726A1
公开(公告)日:2017-12-21
The invention is directed to substituted pyridine derivatives. Specifically, the invention is directed to compounds according to Formula (Iar): (Iar) wherein Yar, X1ar, X2ar, R1ar, R2ar, R3ar, R4ar and R5ar are as defined herein; or a pharmaceutically acceptable salt or prodrug thereof. The compounds of the invention are selective inhibitors of DNMT1 and can be useful in the treatment of cancer, pre-cancerous syndromes, beta hemoglobinopathy disorders, sickle cell disease, sickle cell anemia, and beta thalassemia, and diseases associated with DNMT1 inhibition. Accordingly, the invention is further directed to pharmaceutical compositions comprising a compound of the invention. The invention is still further directed to methods of inhibiting DNMT1 activity and treatment of disorders associated therewith using a compound of the invention or a pharmaceutical composition comprising a compound of the invention.
Orthoester exchange: a tripodal tool for dynamic covalent and systems chemistry
作者:René-Chris Brachvogel、Max von Delius
DOI:10.1039/c4sc03528c
日期:——
We demonstrate that acid-catalyzed orthoester exchange is a promising tool for applications in dynamic covalent and systems chemistry.
我们展示了酸催化的正酯交换是动态共价和体系化学应用中的一种有前途的工具。
A new efficient method for conversion of corticosteroid 17.ALPHA.,21-cyclic ortho esters to 17.ALPHA.-acyloxy-21-chloro-21-deoxy derivatives.
作者:SABURO SUGAI、SANYA AKABOSHI、SHIRO IKEGAMI
DOI:10.1248/cpb.31.12
日期:——
The reaction of corticosteroid 17α, 21-cyclic ortho esters (2) with various chloroformates (3) afforded the corresponding 17α-acyloxy-21-chloro-21-deoxy derivatives (4) in good yields. It was found that several new derivatives, 17α-acyloxy-21-chloro-11β-hydroxy-6α-methyl-1, 4-pregnadiene-3, 20-diones (4a-g), exhibited potent vasoconstrictive activities.