Patent ID: 6962695

Claim:
A process for the production of α-interferon comprising the steps: i) inducing of human leukocytes by means of a virus, ii) treating the leukocytes with an enhancing agent selected from a) xanthine, pyrimidinol and pyrimidinone, theophylline, theobromine, enprophylline, hypoxanthine, 8-phenyltheophylline, 2-amino-5-bromo-6-methylpyrimidinol, 2-amino-6-methyl-4-pyrimidinol and thymine; b) an organic solvent selected from the group consisting of non-aromatic ketones, aliphatic or cyclic amides, alkylated aliphatic or cyclic urea derivatives and aliphatic or cyclic sulfoxides; or a combination of the compounds from a) with an organic solvent from b).