Evaluation of glycolamide esters and various other esters of aspirin as true aspirin prodrugs
作者:Niels Moerk Nielsen、Hans Bundgaard
DOI:10.1021/jm00123a040
日期:1989.3
aryl esters of acetylsalicylic acid (aspirin) were synthesized and evaluated as potential prodrug forms of aspirin. N,N-Disubstituted glycolamide esters were found to be rapidly hydrolyzed in human plasma, resulting in the formation of aspirin as well as the corresponding salicylate esters. These in turn hydrolyzed rapidly to salicylic acid. The largest amount of aspirin formed from the esters were
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.
Short-acting sedative hypnotic agents for anesthesia and sedation
申请人:——
公开号:US20030153554A1
公开(公告)日:2003-08-14
The invention provides compounds compositions and methods useful for inducing or maintaining general anesthesia or sedation in mammals.
这项发明提供了一种用于在哺乳动物中诱导或维持全身麻醉或镇静的化合物组合物和方法。
Novel Synthesis of 2-Aryl and 2,3-Disubstituted Indoles by Modified Double Elimination Protocol
作者:Govindarajulu Babu、Akihiro Orita、Junzo Otera
DOI:10.1021/ol051826e
日期:2005.10.1
[reaction: see text] Syntheses of 2-aryl and 2,3-substituted indoles were realized by modified doubleelimination protocol. Under basic conditions, vinyl sulfones derived from the reaction of 2-aminobenzyl sulfone with benzaldehydes underwent cyclization and alkylation followed by elimination of sulfinic acid to afford 2,3-substituted indoles.
Compounds of Formula I:
and pharmaceutically acceptable salts and solvates thereof, wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, and R
10
have the meanings as indicated in the specification, are useful for treating diseases mediated by blockade of the epithelial sodium channel. Pharmaceutical compositions that contain the compounds and processes for preparing the compounds are also described.