Daiichi Seiyaku Co., Ltd.

Daiichi Pharmaceutical Co., Ltd.

Masahide Asano

Tosaku Miki

Hiroshi Fujita

Shunzo Aibara

Tamotsu Miwa

Yasuhiro Hosokawa

Kazuhiko Nakajima

Toru Hosokami

Kazuhisa Furuhama

Keiko Kawarabayashi

Pharmaceutical preparations for ameliorating epigastric functional

Aminobenzamide derivatives of the formula (I) ##STR1## wherein: R.sub.1 and R.sub.2 each represents a lower alkoxy group,

Aminobenzamide derivatives

N-phenethylacetamide compounds of the formula: ##STR1## wherein X.sub.1 represents a lower alkoxy group, X.sub.2 represents a hydrogen atom or a lower alkoxy group and R represents a phenyl group, a pyridyl group, a pyrimidinyl group or a benzoyl group, each of which may have one or more substituents selected from a halogen atom, a carbamoyl group, a lower alkoxy group, a sulfamoyl group, an amino group, a lower alkylamino group, a lower alkylthio group, a hydroxy group and a lower alkoxycarbonyl group; the parmaceutically acceptable acid addition salts and hydrates thereof; as well as the process for preparing such compounds and salts and hydrates thereof; the compounds, their salts and their hydrates having a distinct anti-peptic ulcer activity in human and animals.

N-Phenethylacetamide compounds and process for preparation thereof

Compounds having the formula ##STR1## wherein R.sub.1 is phenyl or cycloalkyl and the phenyl may have at least one substituent selected from the group consisting of lower alkyl, lower alkoxy, amino and nitro; R.sub.2 is hydrogen or lower alkyl; A is --CH.sub.2 O-- or --CH.sub.2 CH(O-lower alkyl)-; n is zero (0) or one (1); when R.sub.1 together with (A).sub.n is unsubstituted phenyl, R.sub.2 is lower alkyl; and R.sub.3 is hydrogen or lower alkoxy, have anti-ulcerous action.

Anti-ulcerous tyrosine derivatives

Compounds having the formula: ##STR1## wherein R.sub.1 is phenyl or cycloalkyl and the phenyl may have at least one substituent selected from the group consisting of lower alkyl, lower alkoxy, amino and nitro; R.sub.2 is hydrogen or lower alkyl; A is --CH.sub.2 O-- or --CH.sub.2 CH(O-lower alkyl)-; n is zero (0) or one (1); when R.sub.1 together with (A).sub.n is unsubstituted phenyl, R.sub.2 is lower alkyl; and R.sub.3 is hydrogen or lower alkoxy, have anti-ulcerousaction.

Tyrosine derivatives and process for preparing the same

Compounds having the formula: ##STR1## wherein R.sub.1 is phenyl or cycloalkyl and the phenyl may have at least one substituent selected from the group consisting of lower alkyl, lower alkoxy, amino and nitro; R.sub.2 is hydrogen or lower alkyl; A is --CH.sub.2 O-- or --CH.sub.2 CH(O-lower alkyl)-; n is zero or 1 when R.sub.1 together with (A).sub.n is unsubstituted phenyl, R.sub.2 is lower alkyl; and R.sub.3 is hydrogen or lower alkoxy, have anti-ulcerousaction.

Growing community of inventors

Tokyo, Japan

Masahide Asano