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Synthesis of dimeric cytochalasins. Reagents and conditions: a) [Pd(dppf)Cl2] (0.1 equiv), CH3CO2K, dioxane, 110 °C, 8 h; b) 1 d, [Pd(PPh3)4] (0.1 equiv), X‐Phos (0.2 equiv), dioxane, H2O, 110 °C, 2 h; c) DIPEA, DMF, CuI (0.05 equiv), RT, 12 h.
