Hoechst Japan Limited

Koichi Shudo

Nippon Kayaku Co., Ltd

Tatsuo Sugioka

Mizuho Inazu

Tsutomu Inoue

Kazuyuki Kitamura

Hideyuki Tanaka

Tochiro Tatee

An anti-osteopathic composition comprising as an active ingredient a compound represented by the following formula (I), (II) or (Ill): ##STR1## which is useful for therapeutic and prophylactic treatment of osteopathia such as osteoporosis and bone fracture.

Anti-osteopathic composition

An anti-osteopathic composition comprising as an active ingredient a compound represented by the following formula (I), (II) or (III): ##STR1## which is useful for therapeutic and prophylactic treatment of osteopathia such as osteoporosis and bone fracture.

Treatment of osteopathic comprising administering as an active ingredient a compound represented by the following formula (I), (II) or (III): ##STR1##

Method of treating bone disease with pyridine, carboxamide and

A compound represented by the general formula: ##STR1## wherein A-O-denotes a residue of a compound having an estrogenic activity; R.sub.1 denotes H or a C.sub.1 -C.sub.6 alkyl group; X denotes a single bond, a C.sub.1 -C.sub.10 alkylene group or a group of the formula ##STR2## wherein R.sub.2 denotes H or a C.sub.1 -C.sub.5 alkyl group; Z denotes a nitro group or a halogen; n is an integer of 3 to 12; k is an integer of 1 to 5; L is an integer of 0 to 5; and q is an integer of 1 to 3,

Bisphosphonate derivative

A process for the manufacture of a 6-acyl-7-deacetylforskolin derivative represented by formula (I) ##STR1## by reacting a 7-acyl-7-deacetylforskolin derivative represented by formula (II) ##STR2## with a strong base in an aprotic solvent.

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Saitama, Japan

Tatsuo Sugioka