Isoheleproline: a new amino acid-sesquiterpene adduct from Inula helenium

Kazumasa Zaima1, Daigo Wakana, Yosuke Demizu

  • 1Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo, 158-8501, Japan.

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