Patent ID: 7071344

Claim:
A vitamin D compound of formula I, in which Y 1 means a hydrogen atom, a hydroxyl group, a fluorine, chlorine or bromine atom or a group —OCOR 8 , in which R 8 is an aliphatic or aromatic radical with 1 to 12 C atoms, Y 2 means a hydrogen atom or a group —(CO)R 9 , in which R 9 is an aliphatic or aromatic radical with 1 to 12 C atoms, R 1 and R 2 are together an exocyclic methylene group, R 3 and R 4 , independently of one another, mean a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, V and W together mean an E-double bond, Q means a straight-chain or branched carbon unit with up to 10 carbon atoms, which at any position can have α- or β-hydroxyl groups, which in turn can be etherified or esterified, keto groups, amino groups or halogen atoms, Z means a straight-chain or branched-chain, saturated or unsaturated hydrocarbon radical with up to 12 carbon atoms, which at any positions can have keto groups, α- or β-hydroxyl groups, which in turn can be etherified or esterified, amino groups, chlorine, or bromine atoms wherein Q is not —CHOH—.