Taisho Pharmaceutical Co., Ltd.

Michitada Sasajima

Takehiro Amano

Jiro Sawada

Kensei Yoshikawa

2-(p-prenylphenyl)propionic acid and pharmaceutically acceptable salts thereof are disclosed. They exhibit anti-inflammatory and analgesic activity with low gastrointestinal action.

2-(p-Prenylphenyl)propionic acid

Anilinotropone derivatives represented by the following formula: ##STR1## wherein R is hydrogen or methyl and pharmaceutically acceptable salts thereof are disclosed. They exhibit anti-inflammatory and analgesic activity with low gastrointestinal action.

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Higashimurayama, Japan

Michitada Sasajima