Masahiko IsakaSomporn PalasarnSujinda SommaiSukitaya VeeranondhaKitlada SrichomthongPalangpon KongsaereeSamran PrabpaiThailand National Center for Genetic Engineering and BiotechnologyMahidol University2018-12-212019-03-142018-12-212019-03-142017-01-01Tetrahedron. Vol.73, No.12 (2017), 1561-156714645416004040202-s2.0-85011977806https://repository.li.mahidol.ac.th/handle/20.500.14594/41987© 2017 Elsevier Ltd Seven new lanostane triterpenoids, astraeusins M–Q (1–5), 26-epi-artabotryol C1 (6), and 26-epi-astrasiaone (7), together with seventeen known compounds (8–24), were isolated from the food mushroom Astraeus asiaticus. The C-26 configuration of artabotriol C1 and astrasiaone, originally reported as 26R (6 and 7, respectively), was revised to be 26S (16 and 17, respectively). Astraeusin M (1) exhibited antimalarial activity against Plasmodium falciparum K1 with an IC50value of 3.0 μg/mL.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemistryArticleSCOPUS10.1016/j.tet.2017.01.070