Nickel/Cobalt-Catalyzed C(sp<sup>3</sup>)–C(sp<sup>3</sup>) Cross-Coupling of Alkyl Halides with Alkyl Tosylates
作者:Kimihiro Komeyama、Takuya Michiyuki、Itaru Osaka
DOI:10.1021/acscatal.9b03352
日期:2019.10.4
The C(sp3)–C(sp3) cross-coupling of alkyl halides with alkyl tosylates has been developed by employing a combination of nickel and nucleophilic cobalt catalysts in the presence of a manganese reductant. This method provides a straightforward route to a diverse set of not only secondary–primary but also primary–primary C(sp3)–C(sp3) linkages under mild conditions without using alkyl-metallic reagents
Histamine H3 Inverse Agonists and Antagonists and Methods of Use Thereof
申请人:Chytil Milan
公开号:US20110065694A1
公开(公告)日:2011-03-17
Provided herein are fused imidazolyl compounds, methods of synthesis, and methods of use thereof. The compounds provided herein are useful for the treatment, prevention, and/or management of various disorders, including, e.g., neurological disorders and metabolic disorders. Compounds provided herein inhibit the activity of histamine H3 receptors and modulate the release of various neurotransmitters, such as, e.g., histamine, acetylcholine, norepinephrine, and dopamine (e.g. at the synapse). Pharmaceutical compositions containing the compounds and their methods of use are also provided herein.
Benzylpiperazine derivatives. VIII. Syntheses, antiulcer and cytoprotective activities of 1-(aminocarbonylalkyl)-4-benzylpiperazine derivatives and related compounds.
作者:HIROSHI OHTAKA、KENJI YOSHIDA、KENJI SUZUKI、KOICHI SHIMOHARA、SHIGERU TAJIMA、KEIZO ITO
DOI:10.1248/cpb.36.3948
日期:——
From a search for antiulcer agents with cytoprotective activity by random screening, 1-(pyrrolidinocarbonylmethyl)-4-(2, 3, 4-trimethoxybenzyl) piperazine dimaleate (4h) was found as a lead compound. Analogues of 4h were synthesized and evaluated for antiulcer activity as well as toxicity. Four compounds (4h, p, w, x) exhibited potent antiulcer activity in several gastric ulcer models and low toxicity without any antisecretory activity. The antiulcer activity of these compounds was considered to be based on the cytoprotective activity.
A series of novel thio-substituted anthra[1,2-d]imidazole-6,11-dione dervatives, and the preparation method and application of said derivatives, said application having a pharmaceutical composition containing said derivatives with therapeutically effective amount for treating cancer, and said application involves effects of said derivatives for inhibiting telomerase activity, inhibiting the growth of cancer cell, treating cancer and the like.
Compositions of matter D-hetero-1,1-(.alpha.-thiocyanoacetyl) compounds
申请人:Velsicol Chemical Corporation
公开号:US03998808A1
公开(公告)日:1976-12-21
This invention discloses new chemical compositions of matter having the formula: ##STR1## wherein A is a saturated or mono unsaturated aliphatic hydrocarbon chain having from 3 to 7 carbon atoms which optionally contains a maximum of three substituents selected from the group consisting of alkyl, alkoxy and halogen; and n is an integer from 1 to 3. This invention further discloses an insecticidal and fungicidal composition which comprises an inert carrier and, as an essential active ingredient, in a quantity toxic to insects and fungi, a compound of the above description; and a method for the control of insects and fungi which comprises applying to the locus of said insects or fungi an insecticidal and fungicidal composition heretofore described.