1,2,4-Triazolo[4,3-a]quinoxaline-1,4-diones as antiallergic agents
摘要:
A series of new 1,4-dihydro-1,2,4-triazolo[4,3-]quinoxaline-1,4-diones has been prepared. These compounds were tested as inhibitors of antigen-induced release of histamine (AIR) in vitro from rat peritoneal mast cells (RMC) and as inhibitors of IgE-mediated rat passive cutaneous anaphylaxis (PCA). Most of this new class of antiallergic agents showed good activity in the RMC and PCA tests. The most potent compound, 2-acetyl-7-chloro-5-n-propyl-1,2,4-triazolo[4,3-a]quinoxaline-1,4-dione (1x), with an I50 value of 0.1 microM, is 30 times more potent than disodium cromoglycate (DSCG) in the RMC assay.
Metal‐Free C3 Hydroxylation of Quinoxalin‐2(1
<i>H</i>
)‐ones in Water
作者:Sha Peng、Die Hu、Jia‐Li Hu、Ying‐Wu Lin、Shan‐Shan Tang、Hai‐Shan Tang、Jun‐Yi He、Zhong Cao、Wei‐Min He
DOI:10.1002/adsc.201901163
日期:2019.12.17
A practical protocol for the preparation of quinoxaline‐2,3(1H,4H)‐diones through direct C(sp2)−H hydroxylation of quinoxalin‐2(1H)‐ones in recyclable DL‐α‐Tocopherol methoxypolyethylene glycol succinate solution (2 wt% in water) (TPGS‐750‐M/H2O) was developed. The target products were exclusively generated and could be collected through extraction and recrystallization.
The present invention is concerned with the use of certain quinoxaline compounds as hypnotic agents.
本发明涉及使用某些喹喔啉化合物作为催眠剂。
Fluoralkyl quinoxadinediones
申请人:Eli Lilly and Company
公开号:US03992378A1
公开(公告)日:1976-11-16
The present invention is concerned with the use of certain quinoxaline compounds as hypnotic agents.
本发明涉及使用某些喹喔啉化合物作为催眠剂。
LOEV, B.;MUSSER, J. H.;BROWN, R. E.;JONES, H.;KAHEN, R.;HUANG, FU-CHIH;KH+, J. MED. CHEM., 1985, 28, N 3, 363-366
作者:LOEV, B.、MUSSER, J. H.、BROWN, R. E.、JONES, H.、KAHEN, R.、HUANG, FU-CHIH、KH+
DOI:——
日期:——
1,2,4-Triazolo[4,3-a]quinoxaline-1,4-diones as antiallergic agents
作者:Bernard Loev、John H. Musser、Richard E. Brown、Howard Jones、Robert Kahen、Fu Chih Huang、Atul Khandwala、Paula Sonnino-Goldman、Mitchell J. Leibowitz
DOI:10.1021/jm00381a016
日期:1985.3
A series of new 1,4-dihydro-1,2,4-triazolo[4,3-]quinoxaline-1,4-diones has been prepared. These compounds were tested as inhibitors of antigen-induced release of histamine (AIR) in vitro from rat peritoneal mast cells (RMC) and as inhibitors of IgE-mediated rat passive cutaneous anaphylaxis (PCA). Most of this new class of antiallergic agents showed good activity in the RMC and PCA tests. The most potent compound, 2-acetyl-7-chloro-5-n-propyl-1,2,4-triazolo[4,3-a]quinoxaline-1,4-dione (1x), with an I50 value of 0.1 microM, is 30 times more potent than disodium cromoglycate (DSCG) in the RMC assay.