Kissei Pharmaceutical Co., Ltd.

Naoyuki Tsutsumi

Tetsuhide Kamijo

Atsushi Tsubaki

Arao Ujiie

Hiromu Harada

Toshiaki Yamaguchi

Hideo Nagata

Benzofuro[3,2-c]quinoline compounds of the formula: ##STR1## wherein A represents a group of the formula of --CH.sub.2) .sub.m or --CH.sub.2 CH(OH)CH.sub.2 --; Y represents an N,N-di-alkylamino group, an N-mono-alkylamino group or a nitrogen atom-containing aliphatic geterocyclic group; n represents 0 or 1; m represents an integer of from 1 to 3, and pharmaceutically acceptable acid addition salts thereof, possess a strong inhibitory action on bone resorption, a stimulatory effect on ossification.

3-alkoxy substituted benzofuro[3,2-c]quinolin-6-one compounds

Benzofuro[3,2-c]quinoline compounds of the general formula: ##STR1## wherein (1) each of R.sup.1 and R.sup.2 is the same, and represent a group of the formula of --OR.sup.3 in which R.sup.3 represents a carbamoyl group, an N-mono-alkylcarbamoyl group, an N,N-dialkylcarbamoyl group, an alkylsulfonyl group, a formyl group or an aliphatic acyl group which may have an alkoxycarbonyl group as a substituent; m represents zero, 1 or 2; n represents zero or 1; with the proviso that n is not zero when m is zero,

Acylated benzofuro[3,2-c]quinoline compounds with utility as treatments

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Nagano, Japan

Naoyuki Tsutsumi