Yoshitomi Pharmaceutical Industries, Ltd.

Ichiro Horii

Chiaki Tashiro

Takeshi Kawakita

Koretake Anami

A hydrouracil compound of the formula: ##STR1## or a pharmaceutically acceptable acid addition salt thereof, wherein A represents --CH.dbd.CH--CH.sub.2 -- or --CH.sub.2 CH.sub.2 --, and R represents hydrogen or methyl. Such compounds are useful as analgesics.

Hydrouracil compounds

An imidazopyridine-spiro-piperi dine compound of the formula: ##STR1## or a pharmaceutically acceptable acid addition salt thereof, wherein X represents hydrogen, halogen or lower alkoxy, Y represents &gt;N-- or &gt;C.dbd.CH--, R.sup.1 and R.sup.2 both represent hydrogen or combinedly form a single bond, Alk represents lower alkylene, and R.sup.3 and R.sup.4 both represent hydrogen or combinedly form a single bond. Such compounds are useful as psychotropics.

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Yoshitomi, Japan

Ichiro Horii