Intermediates for polycyclic quinonoid antibiotics

Details Intermediates for polycyclic quinonoid antibiotics Intermediates for polycyclic quinonoid antibiotics

C - Chemistry, Metallurgy

07

C

260/208

C07C 237/26 (2006.01)

Patent

CA 1097345

ABSTRACT OF THE DISCLOSURE There is provided a novel tetracyclic quinones par- ticularly 7,10-dihydro-1,6,11 and 4,6,11-trihydroxy-5,9,12(8H)- naphthacenetrione and the 1- and 4-ethers thereof which are useful as intermediates in the synthesis of (?)-7-deoxydauno- mycinone and analogs thereof. The 7-deoxydaunomycinone derived from naturally occurring daunomycin is a known compound, which is itself an intermediate in the preparation of the clinically accepted anti-tumor antibiotics daunomycine and its derivative adriamycin.

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