[EN] PRODRUGS OF IMIDAZOLE DERIVATIVES, FOR USE AS PROTON PUMP INHIBITORS IN THE TREATMENT OF E.G. PEPTIC ULCERS<br/>[FR] PROMEDICAMENTS DE DERIVES D'IMIDAZOLE SERVANT D'INHIBITEURS DE POMPE A PROTONS DANS LE TRAITEMENT DE L'ULCERE GASTRO-DUODENAL
申请人:TAKEDA CHEMICAL INDUSTRIES LTD
公开号:WO2003105845A1
公开(公告)日:2003-12-24
An imidazole compound represented by the formula (I), a salt thereof and a compound of
the formula (V), which is one of the intermediates thereof. wherein each symbol is
as defined in the present specification. The compound of the present invention shows
a superior anti-ulcer activity, a gastric acid secretion inhibitory action, a
mucosa-protecting action, an anti-Helicobacter pylori action and the like. Since
it shows low toxicity, the compound is useful as a pharmaceutical product.
Synthesis of novel 6,7-dihydro-5H-pyrimido[4,5-e][1,4]diazepin-8(9H)-ones
作者:Jinbao Xiang、Xiaowei Hu、Qun Dang、Xu Bai
DOI:10.1002/jhet.615
日期:2011.9
developed for the synthesis of 6,7‐dihydro‐5H‐pyrimido[4,5‐e][1,4]diazepin‐8(9H)‐one derivatives. The key to construct the pyrimido[4,5‐e][1,4]diazepine core is the intramolecular amidation of N‐((4‐amino‐6‐chloropyrimidin‐5‐yl)methyl)‐substituted amino acid esters. This methodology was validated through the preparation of 13 representative 6,7‐dihydro‐5H‐pyrimido[4,5‐e][1,4]diazepin‐8(9H)‐ones in moderate
A controlled release preparation wherein the release of active ingredient is controlled, which releases an active ingredient for an extended period of time by staying or slowly migrating in the gastrointestinal tract, is provided by means such as capsulating a tablet, granule or fine granule wherein the release of active ingredient is controlled and a gel-forming polymer. Said tablet, granule or fine granule has a release-controlled coating-layer formed on a core particle containing an active ingredient.