Isethionic acid salt of 9-cyclohexyl-2-propoxy-9H-purine-6-amine and compositions containing an effective bronchodilating concentration of it

摘要

This invention concerns an isethionic acid addition salt of the non-adrenergic bronchodilating agent 9-cyclohexyl-2-propoxy-9H-purine-6-amine. The salt is comprised of a 2:1 molecular ratio of the isethionic acid to the adenine base. The salt of the invention is characterized in having improved water solubility and stability.