Abstract
4-Deoxycarbazomycin B(3) was synthesized by condensation of 4-methoxy-2,3-dimethylacetanilide (8) with bromobenzene in presence of cuprous iodide and potassium carbonate, and subsequent hydrolysis with 20% aqueous ethanolic KOH, followed by cyclisation of the resulting substituted diphenylamine (9) with palladium acetate in acetic acid.