31125-04-9Relevant academic research and scientific papers
Substituted Indoles, Compositions Containing Them, Method for the Production Thereof and Their Use
-
Page/Page column 17, (2008/06/13)
Compounds of formula (I): wherein R1, R5, R6, R7, Ar, L, A, and Q are as defined in the description, and to salts thereof, to compositions containing them, to the process for preparing them, and to their use as medicinal products, in particular as antican
Bis(alkylthio)carbenes as novel reagents for organic synthesis
Rigby, James H.,Laurent, Stephane,Dong, Weitong,Danca
, p. 10101 - 10111 (2007/10/03)
Bis(alkylthio)carbenes have been shown to be a useful class of reactive intermediates for applications to organic synthesis. Substituted hydroindolones, isatins and hydroquinolones can be prepared by the addition of these carbenes to vinyl isocyanates. (C) 2000 Elsevier Science Ltd.
Rapid construction of isatin derivatives via addition of bis(alkylthio)carbenes to aryl isocyanates
Rigby, James H.,Danca, M. Diana
, p. 6891 - 6894 (2007/10/03)
Thermally induced cyclization between bis(alkylthio)carbenes, derived from the corresponding oxadiazolines, and substituted aryl isocyanates provides access to a variety of isatin derivatives with good efficiency.
Process of preparing benzodiazepine compounds useful as antagonists of CCK or of gastrine
-
, (2008/06/13)
A benzodiazepine derivative of formula I, or a pharmaceutically acceptable salt thereof: STR1 wherein: (a) R4 is an alkyl, cycloalkyl or aryl group. (b) R10 is chosen from halo, OH, CH3, OCH3, NR11 R12, NO2, NHCHO, CO2 H and CN, and R11 and R12 are independently selected from H and alkyl (C1 -C5) or together NR11 R12 form a cyclic structure II, STR2 wherein a is 1-6; and (c) R2 is an aromatic 5- or 6-membered, substituted or unsubstituted heterocycle containing at least two heteroatoms of which at least one is nitrogen. These compounds are gastrin and/or CCK-B receptor antagonists.
(3R)-N-(1-(tert-butylcarbonylmethyl)-2,3-dihydro-2-oxo-5-(2-pyridyl)- 1H-1,4-benzodiazepin-3-yl)-N'-(3-(methylamino)phenyl)urea (YF476): A potent and orally active gastrin/CCK-B antagonist
Semple, Graeme,Ryder, Hamish,Rooker, David P.,Batt, Andrzej R.,Kendrick, David A.,Szelke, Michael,Ohta, Mitsuaki,Satoh, Masato,Nishida, Akito,Akuzawa, Shinobu,Miyata, Keiji
, p. 331 - 341 (2007/10/03)
A number of new 1,4-benzodiazepin-2-one-based gastrin/CCK-B receptor antagonists related to the archetypal analogue L-365,260, and more closely to the recently reported compound YM022, have been synthesized and evaluated for biological activity. The compounds were screened for their ability to inhibit the binding of [125I]CCK-8 to gastrin/CCK-B receptors prepared from rat brains and that of [3H]L-364,718 to CCK-A receptors from rat pancreas, and were shown to be potent and selective ligands for the gastrin/CCK-B receptor. Functional studies in vivo demonstrated the compounds to be antagonists of the receptor as evidenced by their ability to inhibit pentagastrin-induced gastric acid secretion in anesthetized rats. More extensive evaluation in viva included determination of ED50 values in the rat acid secretion model for selected compounds and an examination of the effect of these compounds on pentagastrin-induced gastric acid secretion in Heidenhain pouch dogs following oral and intravenous administration. Two compounds, i.e. (3R)-N- [1-[(tert-butylcarbonyl)methyl]-2,3-dihydro-2-oxo-5-(2-pyridyl)-1H-1,4- benzodiazepin-3-yl]-N'-[3-(methylamino)phenyl]urea, 15c (YF476), and (3R)-N- [1-[(tert-Butylcarbonyl)methyl]-2,3-dihydro-2-oxo-5-(2-pyridyl)-1H-1,4- benzodiazepin-3-yl]-N'-[3-(dimethylamino)phenyl]urea hydrochloride, 15d, showed potent dose-dependent effects in both models with the former showing excellent oral bioavailability and an ED50 of 21 nmol/kg po in dogs. 15e is currently under clinical investigation for the treatment of gastro-oesophagal reflux disease (GORD).
Biological activity of analogues of YM022. Novel (3-amino substituted phenyl)urea derivatives of 1,4-benzodiazepin-2-one as gastrin/cholecystokinin-B receptor antagonists
Satoh, Masato,Okamoto, Yoshinori,Koshio, Hiroyuki,Ohta, Mitsuaki,Nishida, Akito,Akuzawa, Shinobu,Miyata, Keiji,Mase, Toshiyasu,Semple, Graeme
, p. 1412 - 1414 (2007/10/03)
A series of (3-substituted phenyl)urea analogues of the potent gastrin/cholecystokinin (CCK)-B receptor antagonist YM022 has been prepared. Structure activity relationship studies of this series suggested that a number of analogues retained good in vitro potency for gastrin/CCK-B receptor. In particular, the (3-amino substituted phenyl)urea derivatives (10-12) were more potent inhibitors of pentagastrin-induced gastric acid secretion in rats than YM022 on intraduodenal (i.d.) administration.
