Isolation and Structure of Korolkoside, a Bis-Iridoid Glucoside from Lonicera korolkovii
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Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan, and Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
Abstract
A new bis-iridoid glucoside, korolkoside (1), was isolated from Lonicera korolkovii, and its structure and stereochemistry were determined by spectroscopic analysis and chemical derivatization. Korolkoside (1) consists of two secologanin moieties that are connected by an acetal linkage.
†
Nagoya University.
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‡
University of Tsukuba.
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