Fused pyrimidines of formula (I):
wherein R
1
-R
3
, A and n have any of the values described in the specification; and pharmaceutically acceptable salts thereof; have activity as inhibitors of PI3K and may thus be used to treat diseases and disorders arising from abnormal cell growth, function or behavior associated with PI3 kinase such as cancer, immune disorders, cardiovascular disease, viral infection, inflammation, metabolism/endocrine disorders and neurological disorders. Processes for synthesizing the compounds are also described.
Palladium-Catalyzed and Photoinduced Benzylic C–H Carbonylation/Annulation under Mild Conditions
作者:Wei-Wei Ding、Yu Zhou、Shun Song、Zhi-Yong Han
DOI:10.1021/acs.orglett.2c02877
日期:2022.10.14
and photoinduced benzylic cascade benzylic C–H carbonylation/annulation reaction is realized under mild conditions (35 °C, 2 bar CO). The use of a catalytic amount of base is crucial for the reaction to achieve high yields. The reaction consists of a Pd-catalyzed generation of amidyl radical from O-benzyl hydroxylamide substrates and 1,5-HAT to give a benzylic radical, followed by carbonylation and
A series of 3,5-diaryl-s-triazoles were synthesized and evaluated as postimplantation contragestational agents. The introduction of various substituents (e.g., an o-alkyl chain on one phenyl and a m-alkoxy group on the other) was found to increase the potency. Several compounds with very high pregnancy-terminating activity in both hamsters and rats were obtained. One of these, 3-(2-ethylphenyl)-5-(3-methoxyphenyl)-s-triazole, DL 111 (36), was selected for detailed evaluation in various animal species. A synthetic scheme for the preparation of these compounds and preliminary structure-activity relationships are presented.
FR2247221
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公开(公告)日:——
Palladium-Catalyzed Direct C(sp<sup>2</sup>)–H Cyanomethylation of Arylamides using Chloroacetonitrile