Synthesis and biological evaluation of a novel c-Myc inhibitor against colorectal cancer via blocking c-Myc/Max heterodimerization and disturbing its DNA binding
[EN] PYRROLIDINE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND THEIR USE IN THERAPY<br/>[FR] DÉRIVÉS DE PYRROLIDINE, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT, ET LEUR UTILISATION EN THÉRAPIE
申请人:ABBVIE DEUTSCHLAND
公开号:WO2014140310A1
公开(公告)日:2014-09-18
The present invention relates to pyrrolidine derivatives of formula (I), or a physiologically tolerated salt thereof. The invention relates to pharmaceutical compositions comprising such pyrrolidine derivatives, and the use of such pyrrolidine derivatives for therapeutic purposes. The pyrrolidine derivatives are GlyT1 inhibitors.
Efficient nickel(<scp>ii</scp>) naringenin-oxime complex catalyzed Mizoroki–Heck cross-coupling reaction in the presence of hydrazine hydrate
作者:Jin-Yi Song、Yang Liu、Hong-Yan Zhao、Hua-Tao Han、Zhuo-Fei Li、Wei-Hao Guo、Wen-Yi Chu、Zhi-Zhong Sun
DOI:10.1039/c7nj03148c
日期:——
A novel nickel(II) naringenin-oxime complex was designed, synthesized and characterized. Therein, nickel(II) naringenin oxime complex as an efficient catalyst was used in Mizoroki-Heck coupling reactions of aryl halides adhering electron-rich and electron-deficient substituents with styrene, methyl acrylate and divinylbenzene (DVB), respectively. The reaction proceeded efficiently under the alkaline
Cyanation of haloaromatics utilizing catalysts generated in situ starting with NiCl2 or NiCl2 6H2O
申请人:OCCIDENTAL CHEMICAL CORPORATION
公开号:EP0384392A1
公开(公告)日:1990-08-29
Aromatic halide is converted to aromatic nitrile, e.g., p-chlorobenzotrifluoride is converted to 4-(trifluoromethyl)benzonitrile, utilizing Ni(Pφ₃)₃ as a catalyst where said catalyst is formed starting with NiCl₂ or NiCl₂·6H₂O where formation of said catalyst starting with NiCl₂ or NiCl₂·6H₂O and conversion of halide to nitrile are carried out in a single reactor vessel. The method comprises the steps of (a) forming catalyst by steps comprising (i) forming essentially dry Ni(Pφ₃)Cl₂ in situ in said reactor vessel starting with NiCl₂ or NiCl₂·6H₂O, (ii) reacting said essentially dry Ni(Pφ₃)₂Cl₂ with Pφ₃ in the presence of a reducing metal in C₂-C₅ alcohol or aprotic polar reaction solvent in said reactor vessel to produce Ni(Pφ₃)₃ catalyst therein, and (b) adding said halide into said reactor vessel to form a complex in C₂-C₅ alcohol or aprotic polar reaction solvent from said halide and said catalyst and adding alkali metal cyanide to convert halogen to CN and thereby produce nitrile. When anhydrous NiCl₂ is a starting material, steps (a)(i) and (a)(ii) are preferably carried out as a single step where anhydrous NiCl₂ and at least three equivalents of Pφ₃ are added to C₂-C₅ alcohol or aprotic polar solvent followed by addition of reducing metal powder and reaction is carried out to convert NiCl₂ to Ni(Pφ₃)₃ with intermediate formation of Ni(Pφ₃)₂Cl₂. When NiCl₂·6H₂O is a starting material, essentially dry Ni(Pφ₃)₂Cl₂ is formed in step (a)(i) by forming an admixture thereof with azeotrope-forming liquid (e.g., anhydrous C₂-C₅ alcohol or aprotic polar solvent or toluene) and heating to distill off water and forming essentially dry NiCl₂ which is converted to essentially dry Ni(Pφ₃)₂Cl₂ or the NiCl₂·6H₂O is reacted with Pφ₃ to form wet Ni(Pφ₃)₂Cl₂ which is dried by forming an azeotropic mixture and distilling to remove water or by heating or the NiCl₂·6H₂O is made essentially dry by heating with or without Pφ₃ present in the absence of reaction solvent to flash off water and form essentially dry NiCl₂ which is reacted with Pφ₃. The preferred C₂-C₅ alcohol is t-butanol which minimizes formation of hydrodehalogenation side-product in step (b) compared to other alcohols. The preferred aprotic polar solvent is acetonitrile.
Disclosed are compounds and pharmaceutically acceptable salts of Formula I:
wherein n, R
1
, R
2
, R
3
, X, R
4
, R
5
, R
6
, R
8
, R
9
, and Y are as defined herein. Compounds of Formula I are useful in the treatment of diseases and/or conditions related to cell proliferation and/or abnormal cell mitosis, such as cancer, inflammation and inflammation-associated disorders, and conditions associated with angiogenesis. Also disclosed are pharmaceutical compositions comprising compounds of the invention and methods of treating the aforementioned conditions using such compounds.
Process for producing bis( trifluoromethyl)benzaldehyde
申请人:——
公开号:US20020042541A1
公开(公告)日:2002-04-11
The invention relates to a process for producing a bis(trifluoromethyl)benzaldehyde represented by the general formula [1]. This process includes reacting a mono-substituted bis(trifluoromethyl)benzene, represented by the general formula [2], with carbon monoxide and hydrogen in the presence of a catalyst and a base, the catalyst including a palladium compound and a phosphine,
1
wherein X is a halogen atom selected from F, Cl, Br and I, a trifluoromethanesulfonate group, or a pentafluoroethanesulfonate group.