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New cyclic peptides from Citrus medica var. sarcodactylis SWINGLE
Teruki Matsumoto1, Koichi Nishimura, Koichi Takeya
1School of Pharmacy, Tokyo University of Pharmacy & Life Science, Hachioji, Japan.
Chemical & Pharmaceutical Bulletin
|June 5, 2002
Abstract:
Two new cyclic peptides were isolated from the fruit peels of Citrus medica var. sarcodactylis SWINGLE. Their structures were elucidated as cyclo(-Gly-Asp-Leu-Thr-Val-Tyr-Phe-) and cyclo(-Gly-Leu-Pro-Trp-Leu-Ile-Ala-Ala-) by intensive two-dimensional (2D) NMR analysis and chemical evidence.