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Total synthesis of rhodomollein XX and XXII. acac = acetylacetonato, DMAP = 4-(dimethylamino)pyridine, LDA = lithium diisopropyl-amide, PPTS = pyridinium p-toluenesulfonate, pyr = pyridine, TMS = trimethylsilyl, TsOH = para-toluenesulfonic acid.
