Fujirebio Kabushiki Kaisha

Tetsuaki Yamura

Yoshikazu Isowa

Hajime Matsumoto

Yasuo Sekine

Akihiko Hosoda

Akihiro Sekine

Noriaki Kashiwaba

Nobuhiko Hirakawa

Masashi Nishikawa

The compounds of the formulas (VI) and (VII) are useful intermediates in producing pyridyloxy derivatives of the formula (I), such as, for instance, N-{4-[4-(piperidinomethyl)pyridyl-2-oxy]-2-butenyl}-2-(furfurylt hio)acetamide, which are useful as anti-peptic ulcer agents. The compounds of formula (VI) have the formula ##STR1## wherein A represents a formyl group, a protected formyl group, a hydroxymethyl group or a protected hydroxymethyl group. The compounds of formula (VIII) have the formula ##STR2## wherein G represents a formyl group, a protected formyl group, a hydroxymethyl group, a hydroxymethyl group in which the hydroxyl group is protected, or a halogenomethyl group, Y represents --CH.sub.2 --CH.sub.2 -- or --CH.dbd.CH--, and n is 0, 1 or 2.

Intermediates for pyridyloxy compounds having utility as anti-peptic

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Niiza, Japan

Tetsuaki Yamura