申请人:Mitsubishi Chemical Corporation
公开号:EP0455826A1
公开(公告)日:1991-11-13
A novel substituted open-chain terpene compound of general formula (I) which is useful as an intermediate for the synthesis of sarcophytol A, wherein R is (α), (β), or (ψ) (wherein R¹ is cyano or formyl R² is hydrogen or CO₂R³, R³ is C₁ to C₄ alkyl, and R⁴ is -C=CH or -CH=CH₂); X is hydrogen, hydroxyl, halogen, OR⁵ or OSO₂R⁶ (wherein R⁵ is hydrogen, 1-alkoxyalkyl, tetrahydrofuryl, tetrahydropyranyl, acyl, or silyl substituted by C₁ to C₅ alkyl or phenyl, and R⁶ is C₁ to C₄ alkyl which may be substituted by halogen or phenyl which may be substituted by C₁ to C₄ alkyl); and n is an integer of O to 2, provided that X is OR⁵ and n is O when R is (β) or (ψ); X is neither halogen nor OSO₂R⁶ when R¹ is formyl; R² is not hydrogen when R⁵ is hydrogen; and R³ is not methyl when R⁵ is 1-ethoxyethyl.
一种通式(I)的新型取代开链萜烯化合物,可作为合成肌醇 A 的中间体,其中 R 是 (α)、(β)或 (ψ)(其中 R¹ 是氰基或甲酰基 R² 是氢或 CO₂R³,R³ 是 C₁ 至 C₄ 烷基,R⁴ 是 -C=CH 或 -CH=CH₂);X 是氢、羟基、卤素、OR⁵ 或 OSO₂R⁶(其中 R⁵ 是氢、1-烷氧基烷基、四氢糠基、四氢吡喃基、酰基或被 C₄ 烷基取代的硅烷基)、或被 C₁ 至 C₅ 烷基或苯基取代的硅烷基,而 R⁶ 是可被卤素取代的 C₁ 至 C₄ 烷基或可被 C₁ 至 C₄ 烷基取代的苯基);且 n 为 O 至 2 的整数,条件是当 R 为 (β) 或 (ψ) 时,X 为 OR⁵,且 n 为 O;当 R¹ 为甲酰基时,X 既不是卤素,也不是 OSO₂R⁶;当 R⁵ 为氢时,R² 不是氢;当 R⁵ 为 1-乙氧基乙基时,R³ 不是甲基。