摘要:
A process for the manufacture of a 6-acyl-7-deacetylforskolin derivative represented by formula (1) by reacting a 7-acyl-7-deacetylforskolin derivative represented by formula (II) with a strong base in an aprotic solvent.
摘要:
A compound represented by the general formula:
wherein A-O-denotes a residue of a compound having an estrogenic activity; R₁ denotes H or a C₁-C₆ alkyl group; X denotes a single bond, a C₁-C₁₀ alkylene group or a group of the formula
wherein R₂ denotes H or a C₁-C₅ 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, and physiologically acceptable salts thereof. The compounds have a high affinity to bone tissues, and the compounds per se and metabolites thereof show significant therapeutic effect on bone diseases such as osteoporosis, rheumatoid arthritis and osteoarthritis.
wherein R denotes a hydrogen atom or a lower alkyl group; Y and Z may be the same or different and independently denote alkylene groups containing 2-5 carbon atoms in their alkylene chains which may be substituted with a lower alkyl(s); X denotes a single bond or an alkylene group containing 1-10 carbon atoms in its alkylene chain which may be substituted with a lower alkyl(s); A-O- denotes a residue of a compound having an estrogenic activity and q denotes an integer of 1-3, and physiologically acceptable salts thereof. The above compounds (I) or (II) are useful as a bone resorption inhibitor and a therapeutic agent for bone diseases.