| 摘要 |
<p>Orally administrable acid stable anti-ulcer benzimidazole derivatives which are polymer based. The process of preparation comprises condensing a benzimidazole with a biocompatible partially orally biodegradable synthetic cross linked polymer in aqueous medium at 5-80 °C and pH 4-11 under inert atmosphere. The weight percentage of benzimidazole with respect to the polymeric benzimidazole is 1-50. The reaction mixture is cooled and the product is isolated and dried at 25-45 °C. There is also provided a formulation of the polymeric benzimidazoles in combination with pharmaceutically acceptable excipients.</p> |
