Note that, with the exception of the (ugh) "resonance circle" of the aromatic core, that physo structure is spot on! Ditto cortisone, on the left, for which Julian developed one of the first commercial-scale processes.
Want more? This NOVA special tells it well (thanks, Dr. Ru!). Highly recommended.
Please forgive my ignorance, but what's wrong with a "resonance circle"?
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