Efficient synthesis of 5-substituted-3-pyridazine carbonitrile via regioselective Reissert-type reaction
摘要:
Various 5-substituted-3-pyridazine carbonitrile derivatives were synthesized by regioselective Reissert-type reaction with 4-substituted pyridazine, 4-methylbenzene-1-sulfonyl chloride and trimethylsilyl cyanide. The reaction can be carried out under conditions of AlCl3 as catalyst, THF as solvent at 10 degrees C, followed by treatment with DBU which gave moderate yields and good regioselectivity. (C) 2016 Elsevier Ltd. All rights reserved.
N-(HETERO)ARYL-PYRROLIDINE DERIVATIVES OF PYRAZOL-4-YL-PYRROLO[2,3-d]PYRIMIDINES AND PYRROL-3-YL-PYRROLO[2,3-d]PYRIMIDINES AS JANUS KINASE INHIBITORS
申请人:Rodgers James D.
公开号:US20100298334A1
公开(公告)日:2010-11-25
The present invention relates to N-(hetero)aryl-pyrrolidine derivatives of Formula I:
which are JAK inhibitors, such as selective JAK1 inhibitors, useful in the treatment of JAK-associated diseases including, for example, inflammatory and autoimmune disorders, as well as cancer.
Radical-Based Regioselective C–H Functionalization of Electron-Deficient Heteroarenes: Scope, Tunability, and Predictability
作者:Fionn O’Hara、Donna G. Blackmond、Phil S. Baran
DOI:10.1021/ja406223k
日期:2013.8.14
of substituents exert consistent and additive effects on the regioselectivity of substitution. This allowed us to establish guidelines for predicting regioselectivity on complex π-deficient heteroarenes, including pyridines, pyrimidines, pyridazines, and pyrazines. Since the relative contribution from opposing directing factors was dependent on solvent and pH, it was sometimes possible to tune the regiochemistry
4-ALKOXY/ARALKOXY-5-SUBSTITUTED-PYRROLOPYRIMIDINE COMPOUNDS AS TAK1 INHIBITORS IN DISEASE TREATMENT
申请人:Confluence Life Sciences Inc.
公开号:US20150203499A1
公开(公告)日:2015-07-23
The present disclosure provides 4-alkoxy/aralkoxy-5-substituted-pyrrolopyrimidine compounds, pharmaceutically acceptable salts, solvates and pharmaceutical compositions of compounds embraced by Formula (I), providing a therapeutic benefit to subjects with disease conditions, especially cancer, wherein R
1
and R
2
are as defined in the detailed description.