(R)-4-(2-(3-CYCLOPENTYLOXY-4-METHOXYPHENYL)-2-PHENYLETHYL) PYRIDINE HYDROGEN SULPHATE SALT AS PDE TYPE IV INHIBITOR

摘要

The hydrogen sulphate salt of the selective phosphodiesterase type IV inhibitor (R)-4-[2-(3-Cyclopentyloxy-4-methoxyphenyl)-2-phenylethyl]- pyridine hydrogen sulphate salt is described. The salt possesses a number of advantageous chemical and physical characteristics making it particularly suitable for pharmaceutical formulation for use in inter alia the prophylaxis and treatment of asthma.