Acacetin, tilianine, and new glucosylflavones, isoagastachoside (2"-O-acetyl tilianine) and agastachin (di-6"-tilianine malonate), were isolated from the aerial part of Agastache rugosa (Labiatae). These structures were confirmed by the various spectroscopic evidences.
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Itokawa et al. (1981) studied this question.
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