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PROBLEM TO BE SOLVED : To provide compounds for reducing the toxicity of chemotherapeutic agents, treating or preventing cancer or a neuropathic disorder, inducing a phase II detoxifying enzyme, DNA, or protein synthesis, enhancing the immune system, treating inflammation, and improving and enhancing general health or well-being.SOLUTION : This invention relates to : a compound shown by the following formula; or a pharmaceutically acceptable salt, solvate or hydrate thereof. (Ris a hydroxyl group or a substituent having an ester group or the like; Rare each independently -H, -Cl-C6 alkyl or the like, wherein both of Rgroup may be bonded to each other to form a ring; A is -C≡C-, -C≡C-C≡C- or the like; X is -C1-C6 alkylene or the like; Z is -H or a substituent; m is an integer of 1 to 6; and n is 0 to 2, wherein the compound is not panaxytriol.)