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Records of Natural Products
Yazarlar: Tahir Savran, Derya Gülcemal, Milena Masullo, Tamer Karayıldırım, Emre Polat, Sonia Piacente Özgen Alankuş-Çalışkan
Konular:-
Anahtar Kelimeler:Astragaluserinaceus,Leguminosae,Cycloartane,Glucuronic acid,Saponin.
Özet: One new cycloartane-type saponin, 3-O-[ β -D-xylopyranosyl-(1 → 2)- β -D-xylopyranosyl]-6-O- β -D-glucuronopyranosyl-3 β ,6 α ,16 β ,24(S),25- pentahydroxyxyxloartane (1) was isolated from the MeOH extract of whole plant parts of Astragalus erinaceus along with 5 known saponins (2-6), cyclodissectoside, cycloastragenol, 6-O- β -D-glucopyranosyl-3 β ,6 α ,16 β ,24(S),25-pentahydroxycycloartane, oleifolioside B and 3,6-di-O- β -D-xylopyranosyl-3 β ,6 α ,16 β ,24(S),25-pentahydroxycycloartane, respectively. Their structures were established by the extensive use of 1D- and 2D-NMR experiments along with ESIMS and HRMS analysis. The glucuronic acid moiety in cycloartanes is a very unusual finding.
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