抄録
The synthesis of bisanhydrodaunomycinone (II) was achieved via bisanhydro-γ-rhodomycinone (III) by 7 step procedure envolving the transformation of ethyl side chain in III into acetyl group as shown in Chart 2. The formation of an ana-quinone system on methylation of 6, 11-dihydroxynaphthacenequinones (II and III) was discussed from infrared and ultraviolet spectral comparison.
