Begin with a readily available compound that can be elaborated to the core structure of the pyranochalcone.
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1-(7-Hydroxy-5-methoxy-2,2-dimethyl-2H-chromen-8-yl)ethanone
2
3-Methyl-2-butenal
4H-1-Benzopyran-4-one, 3-hydroxy-2-(4-hydroxy-2,5-dimethoxyphenyl)-5,6,7-trimethoxy-
