NOEs determined for epiaristolochene in benzene-d6 following irradiations at the vicinal methyl groups (δ 0.98, 1.17) and the C-9 vinyl proton (δ 5.55), and the resulting chemical shift assignments for H1β (Hax), H1α (Heq), and H8α (Heq) (δ 2.24, 1.95, and 2.31).