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Yoshito Kishi (1937-2023)
Yoshito Kishi (1937-2023)
Professor. Yoshito Kishi,
a member of the Honorary Editorial Associates of HETEROCYCLES,
has passed away on January 9, 2023 at the age of 85.
I deeply express my regret over his death.
Kunio Ogasawara
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January 13, 2023
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Communication | Regular issue | Vol 29, No. 8, 1989, pp.1447-1453
Published online, 1st January, 1970■ Artonins A and B, Two New Prenylflavonoes from the Root Bark of Artocarpus heterophyllus Lamk
Published online, 1st January, 1970
DOI: 10.3987/COM-89-5019
■ Artonins A and B, Two New Prenylflavonoes from the Root Bark of Artocarpus heterophyllus Lamk
Yoshion Hano, Miwa Aida, Mikako Shiina, Taro Nomura,* Takatoshi Kawai, Hiroshi Ohe, and Kengo Kagei
*Faculty of Pharmaceutical Sciences, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
Abstract
Two new prenylflavones, artonins A (1) and B (2), were isolated from the root bark of Artocarpus heterophyllus Lamk. (Moraceae), along with two known prenylflavones, heterophyllin (3) and cycloheterophyllin (4). The structures of artonins A and B were shown to be 1 and 2, respectively, on the basis of the X-ray crystallographic analysis, spectroscopic data, and chemical evidence.
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