PYRIDINE DERIVATIVES, THEIR PREPARATION AND USE AS MEDICINES

摘要

The present invention relates to N-pyridylamidine and N-pyridylguanidine derivatives of general formula (I) in which: Ar<1> is an optionally substituted phenyl ring; Ar<2> is an optionally substituted phenyl ring; R<1> is hydrogen or C1-4alkyl; R<2> is hydrogen or C1-4alkyl; R<3> is hydrogen or C1-4alkyl; R<4> is hydrogen, halogen, C1-6alkyl or C1-6alkoxy; X is CH2 or NR<5>, and R<5> is hydrogen or C1-4alkyl, and the salts thereof, and their use in therapy as gastric acid secretion inhibitors.