Disclosed herein is a cerebral-circulation-metabolism-function-improving agent which contains a 2,6-diphenyl-3,7-dioxabicyclo[3.3.0]octane derivative represented by the following formula as the effective ingredient:
wherein, each of R₁, R₃, R₄ and R₆ represents a hydrogen atom or a lower alkoxyl group; each of R₂ and R₅ represents a hydrogen atom, a β-D-glucosyl group or a hydroxyl group; and each of R₇ and R₈ represents an oxygen atom or two hydrogen atoms.
Fig. 1 indicates the cerebral-blood-stream-intensifying effect produced by administration of (±)-2,6-diphenyl-3,7-dioxabicyclo[3.3.0]octane-4,8-dione (a mixture of cis isomer and the trans isomer in a ratio of 2 to 1).
本发明公开了一种改善脑循环代谢功能的制剂,该制剂含有下式代表的 2,6
-二苯基-3,7-二氧杂环[3.3.0]
辛烷衍
生物作为有效成分:
其中,R₁、R₃、R₄ 和 R₆ 各代表一个氢原子或一个低级烷氧基;R₂ 和 R₅ 各代表一个氢原子、一个 β-
D-葡萄糖基或一个羟基;R₇ 和 R₈ 各代表一个氧原子或两个氢原子。
图 1 显示了服用(±)-2,6
-二苯基-3,7-二氧双环[3.3.0]
辛烷-4,8-二酮(顺式异构体和反式异构体的混合物,比例为 2 比 1)所产生的脑血流强化效应。