Anhydrous crystalline 1-[4(S)-azido-2(S),3(R)-dihydroxy-4-(hydroxymethyl)-1(R)-cyclopentyl]cytos ine hemisulfate as useful as an antiviral agent

   
   

The present invention relates to the hemisulfate salt of 1-[4(S)-azido-2(S),3(R)-dihydroxy-4-(hydroxymethyl)-1(R)-cyclopentyl]cytos ine (Ia) with improved stability and physical properties which facilitate manufacturing, handling and formulating I and polymorphic crystalline forms thereof. ##STR1##

La actual invención se relaciona con la sal del hemisulfate de 1-[4(S)-azido-2(S), del ine 3(R)-dihydroxy-4-(hydroxymethyl)-1(R)-cyclopentyl]cytos (Ia) con estabilidad mejorada y de las características físicas que faciliten el fabricar, el manejar y el formular de I y de formas cristalinas polimórficas de eso. ## del ## STR1

 
Web www.patentalert.com

< Amine salt of lignan compounds

< Method for treating retinal degeneration with purinergic receptor agonists

> Anilide and cyclodextrin complexes, their preparation and their use as medicine in particular for treating dyslipidemiae

> Hypoallergenic transgenic soybeans

~ 00165