COMPOUND POSSESSING INHIBITORY ACTION ON PHOSPHODIESTERASE TYPE 5, AND METHOD FOR PREPARING IT

摘要

FIELD: medicine, pharmaceutics.SUBSTANCE: present invention refers to a citrate of a compound described by formula(II) below, and a pharmaceutical composition containing said citrate.EFFECT: experimental results of the present inventions prove that said citrate can inhibit activity of phosphodiesterase type 5 and can be used for treating erectile dysfunction, for inhibiting thrombocyte aggregation and treating thrombosis, for reducing pulmonary hypertension and treating cardiovascular diseases, asthma and diabetic gastroparesis.2 cl