Novel quinolinone-phosphonic acid AMPA antagonists devoid of nephrotoxicity
作者:Alex A. Cordi、Patrice Desos、Elisabeth Ruano、Hashim Al-Badri、Claude Fugier、Astrid G. Chapman、Brian S. Meldrum、Jean-Yves Thomas、Anita Roger、Pierre Lestage
DOI:10.1016/s0014-827x(02)01281-8
日期:2002.9
2-(1H)-oxoquinolines bearing different acidic functions in the 3-position. Exploiting these SAR, we were able to identify 6,7-dichloro-2-(1H)-oxoquinoline-3-phosphonic acid compound 3 (S 17625) as a potent, in vivo active AMPA antagonist. Unfortunately, during the course of the development, nephrotoxicity was manifest at therapeutically effective doses. Considering that some similitude exists between S 17625 and
6-amino- or 6-hydrazino-sulphonyl-3-quinolynyl-phosphonic acid compounds
申请人:——
公开号:US20010031746A1
公开(公告)日:2001-10-18
The invention relates to a compound of formula (I):
1
wherein:
R
1
represents halogen or a group CF
3
,
R
2
represents hydrogen or alkyl or cycloalkyl,
R
3
is as defined in the description,
R
4
and R
5
represent hydrogen or alkyl, cycloalkyl, aryl or arylalkyl a group
2
Medicaments.
这项发明涉及一种化合物,其化学式为(I):
1
其中:
R
1
代表卤素或CF
3
基团,
R
2
代表氢或烷基或环烷基,
R
3
如描述中所定义,
R
4
和R
5
代表氢或烷基、环烷基、芳基或芳基烷基基团
2
药物。
HYDRAZIDE CHELATE COMPLEX COMPOUND, OPTICAL RECORDING MEDIUM USING THE COMPOUND AND RECORDING METHOD THEREOF
申请人:Mitsubishi Chemical Corporation
公开号:EP2050794A1
公开(公告)日:2009-04-22
Provided are a novel hydrazide chelate complex compound which is excellent in terms of both solubility in a coating solvent and light fastness, which can be used for blue laser recording, and which is useful as a dye for forming a recording layer of an optical recording medium, the hydrazide chelate complex compound being represented by general formula (1) below; and a dye for forming a recording layer of an optical recording medium, the dye containing the compound.
In general formula (1), ring A represents an aromatic ring; R1 and R6 each represent an aromatic ring group or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; R2 to R5 each represent a hydrogen atom, an aromatic ring group, or a monovalent nonaromatic ring substituent having 20 or less carbon atoms; n represents 0 or 1; a represents an integer of 1 to 3; M represents a transition metal atom; and X represents an atom of Groups 14 to 16 of the periodic table.
Formal [4+1] cyclization of (thio/imido)hydrazides and ethyl 3,3,3-trifluoropropanoate: unified synthesis of 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles
作者:Lan Zhao、Jun Xu、Jun Ma、Guangwei Yin、Fangyi Li、Tongchuan Suo、Chunhua Wang
DOI:10.1039/d2nj04147b
日期:——
Here we report an efficient and practical one-step synthesis of a series of 1,3,4-oxadiazoles with ethyl ester decoration, which was accomplished by the formal [4+1] cyclization of hydrazides and commercially available ethyl 3,3,3-trifluoropropanoate. In contrast to previously reported synthetic processes, this method features operational simplicity, easy scalability and good substrate tolerability
Synthesis and biological evaluation of carboxamide and quinoline derivatives as P2X7R antagonists
作者:Qasim Shah、Zahid Hussain、Bilal Ahmad Khan、Kenneth A. Jacobson、Jamshed Iqbal
DOI:10.1016/j.bioorg.2023.106796
日期:2023.11
cancers. We explored the structure activity relationship (SAR) of three novel pyrazines, quinoline-carboxamide and oxadiazole series. Their selective inhibitory potency in Ca2+ mobilization assay using h-P2X7R-MCF-7 cells improved with phenyl ring substitutions (–OCF3, –CF3, and –CH3) in carboxamide and oxadiazole derivatives, respectively. However, highly electronegative fluoro, chloro, and iodo substitutions