Meiji Seika Kaisha, Ltd.

Kozo Aoki

Makoto Suzuki

Naoyuki Nishikawa

Naomi Masuda

Yuji Tabata

Kazunobu Takahashi

Kenji Asai

Masaharu Sugai

Jiro Tanaka

Fukuichi Ohsawa

Akihiko Ikegawa

Nobukazu Kakui

A compound represented by the formula (I) &lsqb;A represents a 5- to 7-membered hydrocarbon ring group; L represents &mdash;NR &mdash;CO&mdash;, &mdash;CO&mdash;NR &mdash; and the like (R represents a hydrogen atom, a lower alkyl group, a lower acyl group and the like); M represents an alkylene linking group (a carbon atom constituting the carbon chain may be replaced with a nitrogen atom, an oxygen atom and the like); X represents &mdash;S&mdash;, &mdash;O&mdash;, &mdash;NR &mdash;, &mdash;NR &mdash;CO&mdash; and the like (R and R represent a hydrogen atom, a lower alkyl group and the like) or a single bond; Y represents an alkyl group, an aryl group, an amino group, an aromatic heterocyclic group and the like; R represents a lower alkyl group, a lower alkenyl group, a lower alkynyl group or a lower acyl group; and R , R and R represent a hydrogen atom, a hydroxyl group, a lower alkyl group and the like&rsqb; or a salt thereof. The compound is useful as an active ingredient of medicaments for diseases in which neuropeptide Y is involved, ingestion control for hyperphagia and the like.

Tricyclic compounds

Growing community of inventors

Odawara, Japan

Kozo Aoki