| 摘要 |
The invention relates to a pharmaceutical composition comprising an anti-ulcer effective amount of a compound of formula I <IMAGE> wherein R represents hydrogen, lower alkyl, phenyl, halophenyl, loweralkylphenyl, loweralkoxyphenyl, or aralkyl of 7 to 12 carbon atoms, R1 represents hydrogen or lower alkoxy, R2 represents hydrogen, chlorine or trifluoromethyl and n is 1 or 2, or a pharmaceutically acceptable acid addition salt thereof, and a pharmaceutically acceptable carrier. A method of treating ulcers or hypersecretion in a mammal which comprises administering a compound of formula I is also disclosed. Some compounds of formula I are novel and within the scope of the invention.
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