Mar 15, 2019 · In gymnosperms, apigenin derivatives are mostly present in dimeric forms, with apigenin residues variously coupled, e.g., with C‒C linkage as in cupressuflavone and amentoflavone (I-8, II-8″ and I-3′, II-8″, respectively), or C‒O linkage (I-4′, II-6″) as in hinokiflavone (Figure 2) [24,25,26,27]. Biogenetically, apigenin is a ...
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