| 摘要 |
Compounds of structure (I): <CHEM> in which R<1> to R<4> are the same or different and are each hydrogen, C1-4alkyl, C1-4alkoxy, phenyl, C1-4alkylthio, C1-4alkanoyl, amino, C1-6alkylamino, diC1-4alkylamino, halogen or trifluoromethyl provided that at least two of R<1> to R<4> are hydrogen. R<5> and R<6> are the same, or different and are each hydrogen, C1-4alkyl, -(CH2)nAr in which n is 0 to 4 and Ar is an optionally substituted phenyl group, or R<5> and R<6> together with the nitrogen atom to which they are attached form a saturated or unsaturated carbocyclic ring; and; R<7> and R<8> are the same or different and are each hydrogen, C1-4alkyl, (CH2)nAr<1> in which n is 0 to 4 and Ar<1> is an optionally substituted phenyl group, or R<7> and R<8> together with the nitrogen atom to which they are attached form a saturated or unsaturated carbocyclic ring; and pharmaceutically acceptable salts thereof, processes for their preparation, pharmaceutical compositions containing them and their use in therapy as inhibitors of gastric acid secretion. |
