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Phytochemical investigation on the anti‐inflammatory fraction extracted from the whole plant of Euphorbia helioscopia L. led to the isolation of three new ent‐atisane diterpenoids (1–3) and five known analogues (4–8). The structures and absolute configurations of the new compounds were elucidated by comprehensive analysis of the NMR, MS, IR, ECD, and X‐ray crystallography. It is worth mentioning that...