4F1pm06 2026/03/12 14:24 一般講演 F1 Isolation and Structural Elucidation of a New Benzofuranone Derivative from Endophytic Fungal Fermentation ○Zul Fikar1,2 Yoshihito Shiono1,2 Takuya Koseki1,2 1UGAS - Iwate University, 2Yamagata University endophytic fungi / structure elucidation / benzofuranone