23-YNE-VITAMIN D3 DERIVATIVE

To provide a novel vitamin D3 derivative useful as a therapeutic agent for osteoporosis. Provided is a vitamin D3 derivative represented by the following formula (1) or a medicinally acceptable solvate thereof: wherein R1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alky...

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Hauptverfasser: OCHIAI, EIJI, IMAIZUMI, KEIICHIRO, KANEKO, TOSHIYUKI, SAITO, HIROSHI, TAKAGI, KENICHIRO, CHIDA, TAKAYUKI, FUJITA, MARIKO, KOMIYAMA, MASATO
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:To provide a novel vitamin D3 derivative useful as a therapeutic agent for osteoporosis. Provided is a vitamin D3 derivative represented by the following formula (1) or a medicinally acceptable solvate thereof: wherein R1 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alkylcarbonyloxyalkyl group with each alkyl having 1 to 6 carbon atoms, or an arylcarbonyloxyalkyl group with the aryl having 6 to 10 carbon atoms and the alkyl having 1 to 6 carbon atoms; R2 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms or, together with the other R2 and the carbon atom to which they are bound to, may form a cyclic alkyl group having 3 to 6 carbon atoms; R3 represents an alkyl group having 1 to 6 carbon atoms or, together with the other R3 and the carbon atom to which they are bound to, may form a cyclic alkyl group having 3 to 6 carbon atoms; X represents an oxygen atom or a methylene group; and n represents an integer of 1 or 2. (see above formula)