9-substituted guanine monohydrate, METHOD FOR PREPARATION THEREOF, PHARMACEUTICAL PREPARATION monohydrate FOR USE AS A THERAPEUTIC ACTIVE AGENT monohydrate FOR USE FOR TREATMENT OF VIRUS INFECTIONS AND USE OF A monohydrate FOR THE PREPARATION OF A MEDICINE

摘要

A crystalline monohydrate of the compound of formula (A) or a crystalline sodium salt monohydrate of the compound of formula (A): IMAGE (A) having antiviral activity, processes for their preparation and their use as pharmaceuticals.