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. Author manuscript; available in PMC: 2018 Apr 10.
Published in final edited form as: Nat Chem. 2015 Jul 20;7(9):744–751. doi: 10.1038/nchem.2302

Figure 1. Anthraquinone-containing natural products.

Figure 1

a, Molecular structures of marmycin A (1) and B (2), jadomycin B (3), hedamycin (4), the clinically approved anthracycline doxorubicin (DXR, 5) and landomycin E (6). b, Retrosynthetic analysis towards marmycin A precursors featuring a stepwise fusion of the aromatic and chiral sugar moieties and a regioselective cycloaddition.