Kureha Kagaku Kogyo Kabushiki Kaisha

Tadashi Tsuchiya

Takao Kawasaki

Yoshiaki Osaka

Daisaku Immaru

Saichi Ono

Yukiharu Yamaguchi

Hideyuki Hashizume

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

Derivatives of 2-substituted-phenylthiazole having the formula (I) ##STR1## wherein R.sup.1 represents a lower alkyl group of 1 to 3 carbon atoms, R.sup.2 represents a hydrogen atom or a lower alkyl group of 1 to 3 carbon atoms and n denotes an integer of 1 to 3, with the proviso that when R.sup.2 represents a hydrogen atom the positions 3, 4 and 5 of benzene ring thereof are not simultaneously occupied by methoxy group, posses anti-peptic ulcer activity.

2-Substituted-phenylthiazole derivatives

2-Substituted-4-thiazolidones

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

A polyvinylidene fluoride film having a high dielectric strength of at least 10 MV/cm at room temperature and at least 8 MV/cm at 100.degree. C. and a process for producing the same.

Polyvinylidene fluoride film having superior dielectric strength and a

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.

Growing community of inventors

Matsudo, Japan

Tadashi Tsuchiya