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Obituary
Zenichi Yoshida (1925-2023)
Zenichi Yoshida (1925-2023)
Professor. Zenichi Yoshida,
a member of the Honorary Advisors of HETEROCYCLES (1975-1998),
has passed away on May 4, 2023 at the age of 97.
I deeply express my regret over his death.
Kunio Ogasawara
Editor
May 11, 2023
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Short Paper | Regular issue | Vol 87, No. 5, 2013, pp.1093-1098
Published online, 4th April, 2013
Published online, 4th April, 2013
DOI: 10.3987/COM-13-12688
■ Two New Furofuran Lignans from Kandelia obovata
Haihan Nan,* Han Lin,* Zhuoquan Qian, and Haozhen Yin
*Department of Marine Science, Wenzhou Medical College, University-town, Wenzhou, Zhejiang 325035, China
Abstract
Two new furofuran lignans, named kandelisesquilignan A and kandelisesquilignan B, were isolated from the aerial part of Kandelia obovata, together with seven known compounds β-sitosterol, betulinic acid, daucosterol, friedelin, lupeol, apigenin and acacetin. Their structures were characterized on the basis of spectral data. The two new compounds showed significant antioxidant activity by the DPPH method (IC50 = 31.9 and 27.8 μg/mL).
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