[EN] NOVEL PSEUDOMORPH OF VALACICLOVIR HYDROCHLORIDE<br/>[FR] NOUVEAU PSEUDOMORPHE D'HYDROCHLORURE DE VALACICLOVIR
申请人:MATRIX LAB LTD
公开号:WO2006035452A1
公开(公告)日:2006-04-06
The present invention relates to a stable novel pseudomorph of Valaciclovir hydrochloride and the process for its preparation by the debenzylation of 2-[(2-Amino-l,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]ethyl N- [(benzyloxy)carbonyl]L-valinate by bubbling hydrogen gas in presence of HCl, isolating the product in a mixture of ethanol and water followed by crystallization in aq.ethanol, drying under vacuum and allowing to adsorb moisture at ambient conditions.
本发明涉及一种稳定的新型伪形态的盐酸瓦拉西克洛韦以及其制备方法,通过在HCl存在下通过在氢气气泡中脱苄基2-[(2-氨基-1,6-二氢-6-氧基-9H-嘌呤-9-基)甲氧基]乙基N-[(苄氧基)羰基]L-缬氨酸酯,然后在乙醇和水的混合物中分离产物,随后在水乙醇中结晶,真空干燥并允许在常温下吸附湿气。