Oblon, Fisher, Spivak, McClelland & Maier
N-acyl acidic amino acid diamide derivative, a salt thereof, and an anti-ulcer agent containing the same
 This invention relates to a novel N-acyl acidic amino acid diamide derivative represented by the general formula or a salt thereof: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, represents a hydrogen atom or a substituted or unsubstituted alkyl, cycloalkyl, alkenyl or aralkyl group, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4, when taken together with the respective adjacent nitrogen atoms, form a substituted or unsubstituted heterocyclic group; R.sup.5 represents a substituted or unsubstituted cycloalkyl, acyl or heterocyclic group; A represents a bond or a substituted or unsubstituted alkylene, alkenylene or alkadienylene group; and n is 1, 2 or 3. Said compound has an anti-ulcer activity which is effective to human beings and animals. This disclosure relates to such a compound, to a process for the production thereof and to an anti-ulcer agent containing the same. 
Toyama Chemical Co., Ltd.
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inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional inventional
Shiro Hiroshi Noboru Takuya Tatsuya Yasuo Yasuyuki Mikio
Hirai Hirano Takagawa Kodama Miyaura Kiba Suzuki Kawabata