THIENOPYRIMIDINE DERIVATIVE, PROCESS OF ITS PREPARATION AND PHARMACEUTICAL COMPOSITION CONTAINING THEREOF

摘要

PCT No. PCT/EP97/04139 Sec. 371 Date Feb. 9, 1999 Sec. 102(e) Date Feb. 9, 1999 PCT Filed Jul. 30, 1997 PCT Pub. No. WO89/06722 PCT Pub. Date Feb. 19, 1998Thienopyrimidines of the formula I and the physiologically acceptable salts thereof in which R1, R2, R3, R4, X and n have the meanings given in Claim 1 inhibit phosphodiesterase V and can be employed for the treatment of diseases of the cardiovascular system and for the therapy of impaired potency.