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Nine cytochalasanmycotoxins,chaetoglobosins A,G,V,Vb,C,E,F,Fex,and 20-dihydrochaetoglobosin A(1-9)wereisolated from the culture of Chaetomiumglobosum,an endophytic fungus in Ginkgo bilobain four media.The structures of these metabolites were elucidatedon the basis of spectroscopic analysis.