PROBLEM TO BE SOLVED: To provide a compound having HSP70 induction activity and useful as nerve protectant, antiviral agent, gastric mucosa protectant, multiple myeloma therapeutic agent, melanogenesis inhibitor and the like, and a pharmaceutical composition or a cosmetic composition comprising the compound.SOLUTION: The present invention provides an analog of the following HPH, and a pharmaceutical composition or a cosmetic composition comprising the analog.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】HSP70誘導活性を有する神経保護剤、抗ウイルス剤、胃粘膜保護剤、多発性骨髄腫の治療剤、メラニン産生抑制剤等として有用な化合物、及び当該化合物を含む医薬組成物または化粧用組成物の提供。【解決手段】下記のHPHの類縁体、及び該類縁体を用いた医薬組成物、化粧用組成物。【選択図】なし