Kureha Kagaku Kogyo Kabushiki Kaisha

Yoshiaki Osaka

Takao Kawasaki

Saichi Ono

Tadashi Tsuchiya

Yukiharu Yamaguchi

Daisaku Immaru

Katsumi Komatsu

Disclosed herein novel compounds, 2-substituted-4-thiazolidones having anti-peptic ulcer activity, and methods for producing the same.

2-substituted-4-thiazolidones

2-Substituted-4-thiazolidones

Disclosed are novel high polymeric substances having saccharide side chains, suitable as a high polymeric material having several functions for medical treatments and a process for preparing thereof.

Process for preparing high polymeric substance having saccharide side

Compounds of 2-substituted-phenyl-5-alkylthiazolidine-4-one having the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 represent respectively a lower alkyl group of 1 to 3 carbon atoms and n denotes an integer of 1 to 3 possess anti-peptic ulcer activity.

2-Substituted-phenyl-5-alkylthiazolidine-4-one

Compounds of 2-substituted-phenyl-1,3-perhydrothiazine-4-one having the formula (I) ##STR1## wherein R represents a lower alkyl group of 1 to 3 carbon atoms and n denotes an integer of 1 to 3 possess anti-peptic ulcer activity.

2-Substituted-phenyl-1,3-perhydrothiazine-4-one

2-(3,4,5-trimethoxyphenyl)-4,5-disubstituted thiazoles, each of which has an anti-peptic ulcer activity, and methods for producing the same are disclosed herein.

2-(3,4,5-Trimethoxyphenyl)-4,5-disubstituted thiazoles

Disclosed are novel high polymeric substances having saccharide side chains, suitable as a high polymeric material having several functions for medical treatments and a method for producing thereof.

Growing community of inventors

Nagareyama, Japan

Yoshiaki Osaka