An aim of the present invention is to provide a novel cyclic depsipeptide derivative and a pest control agent comprising the same. According to the present invention, a compound represented by formula (1) or a stereoisomer thereof, a pest control agent comprising the same, and a production method thereof are provided.本發明目的為提供一種新穎環狀酯肽(Depsipeptide)衍生物及含有其之有害生物防除劑。根據本發明,提供一種式(1)所示之化合物或其立體異構物,包含其而成之有害生物防除劑、及該等之製造方法。