The proposed structures of orchinol and loroglossol (9,10-dihydro-2,4-dimethoxy-5- and 7-phenanthrol, respectively) are confirmed by syntheses, and hircinol is shown to be 9,10-dihydro-4-methoxyphenanthrene-2,5-diol.
R. M. Letcher and L. R. M. Nhamo, J. Chem. Soc., Perkin Trans. 1, 1973, 1263 DOI: 10.1039/P19730001263
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