Heterocyclo substituted hydroxamic acid derivatives as cyclooxygenase-2 and 5-lipoxygenase inhibitors
申请人:Pharmacia Corporation
公开号:US20020058810A1
公开(公告)日:2002-05-16
This invention is in the field of antiinflammatory pharmaceutical agents and specifically relates to compounds, compositions and methods for treating disorders mediated by cyclooxygenase-2 or 5-lipoxygenase, such as inflammation.
Pyrazole substituted hydroxamic acid derivatives as cyclooxxgenase-2 and 5- lipoxygenase inhibitors
申请人:——
公开号:US20010056189A1
公开(公告)日:2001-12-27
This invention is in the field of antiinflammatory pharmaceutical agents and specifically relates to compounds, compositions and methods for treating disorders mediated by cyclooxygenase-2 or 5-lipoxygenase, such as inflammation.
Practical Iron-Catalyzed Allylations of Aryl Grignard Reagents
作者:Matthias Mayer、Waldemar M. Czaplik、Axel Jacobi von Wangelin
DOI:10.1002/adsc.201000228
日期:2010.9.10
reaction between aryl halides and allyl electrophiles has been developed. The underlying domino process exhibits high versatility with respect to the allylic leaving group (acetate, tosylate, diethyl phosphate, methyl carbonate, trimethylsilanolate, methanethiolate, chloride, bromide) and high economic and environmental sustainability with respect to the catalyst system (0.2–5 mol% tris(acetylacetonato)iron(III)
The present invention is directed to a reagent for use in the preparation of organomagnesium compounds as well as to a method of preparing such organomagnesium compounds. The present invention furthermore provides a method of preparing functionalized or unfunctionalized organic compounds as well as the use of the reagents of the present invention in the preparation of organometallic compounds and their reaction with electrophiles. Finally, the present invention is directed to the use of lithium salts - LiY in the preparation of organometallic compounds and their reactions with electrophiles and to an organometallic compound which is obtainable by the disclosed method.
Formal Allylic C(sp<sup>3</sup>)–H Bond Activation of Alkenes Triggered by a Sodium Amide
作者:Wei Bao、Hanno Kossen、Uwe Schneider
DOI:10.1021/jacs.7b01542
日期:2017.3.29
alkenes under mild conditions. Subsequent C-C bond formations with imines have proceeded in high yields with complete regioselectivity and excellent geometric selectivity. Aromatic cyano, chloro, and bromo functionalities are tolerated by the transition metal-free catalyst. Complex amines bearing a C═C double bond and distinct heteroaromatic units have been prepared in a single step. The critical importance