9,10-secopregnane derivative and pharmaceutical

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 401/00 (2006.01) A61K 31/59 (2006.01) A61P 17/00 (2006.01) A61P 17/06 (2006.01)

Patent

CA 2653772

The main object is to provide a novel useful vitamin D3 derivative which has an excellent vitamin D3 activity and has relative small influence on systemic calcium metabolism compared to a conventional vitamin D3 derivative. Disclosed are: a 9,10-secopregnane derivative represented by the general formula [1]; and a pharmaceutical composition comprising the derivative as an active ingredient. [1] wherein the following partial structure lying between position-16 and position-17: represents a single or double bond: Y represents a single bond, an alkylene, an alkenylene or a phenylene; R1 and R2 independently represent a hydrogen, an alkyl or a cycloalkyl, or R1 and R2 may together with a carbon atom adjacent to R1 and R2 form a cycloalkyl; R3 represents a hydrogen or a methyl; and Z represents a hydrogen, a hydroxy or ~NR11R12.

La présente invention concerne principalement un dérivé innovant utile de la vitamine D3 ayant une excellente activité de vitamine D3 et une influence sur le métabolisme calcique systémique relativement petite par rapport à celle d'un dérivé conventionnel de la vitamine D3. L'invention concerne : un dérivé de 9,10-sécoprégnane représenté par la formule générale [1] ; et une composition pharmaceutique comprenant le dérivé en tant que matière active. [1] dans laquelle la structure partielle suivante qui se trouve entre la position 16 et la position 17 : représente une liaison simple ou une double liaison : Y représente une liaison simple, un alkylène, un alkénylène ou un phénylène ; R1 et R2 représentent indépendamment un hydrogène, un alkyle ou un cycloalkyle, ou R1, R2 et un atome de carbone adjacent à R1 et à R2 peuvent former ensemble un cycloalkyle ; R3 représente un hydrogène ou un méthyle ; et Z représente un hydrogène, un hydroxyle ou ~NR11R12.

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