Abstract: Four neo-lignans: isoamericanin A(1), isoamericanol A(2), americanin B(3), artabotrycinol(4), a hemiterpenoid: (R)-artabotriol(5) and other compounds: palmitic acid(6), β-sitosterol(7) and daucosterol(8) were isolated from the seeds of Artabostrys hexapetalus (L.f.) Bhadari (Annonaceae). Artabotrycinol(4) is a new neo-lignan and (R)-artabotriol(5) is a new hemiterpenoid. Their structures were established by IR, UV, MS, 1D and 2D-NMR. Three other neo-lignans 1, 2, 3 were isolated from this plant for the first time.

Key words: Artabostrys hexapetalus, Artabostrys hexapetalus, Annonaceae, Annonaceae, neo-Lignans, neo-Lignans, Artabotrycinol hemiterpenoid, Artabotrycinol hemiterpenoid, (R)-Artabotriol, (R)-Artabotriol