Isoshamixanthone: a new pyranoxanthone from endophytic Aspergillus sp. ASCLA and absolute configuration of epiisoshamixanthone - Kamel, R A; Abdel-Razek, A S; Hamed, A; Ibrahim, R R; Stammler, H G; Frese, M; Sewald, N; Shaaban, M (Nat Prod Res, 2020)