LEYLA MAAMRIA2024-02-142024-02-142015-01-31MAAMRIA, Leyla, et al. Cycloartane glycosides from Astragalus gombo. Phytochemistry Letters, 2015, 11: 286-291.‏18743900http://dspace.univ-khenchela.dz:4000/handle/123456789/928Six new cycloartane-type triterpene glycosides named 3-O-[b-D-glucopyranosyl(1 ! 2)-b-D-xylopyr- anosyl]-3b,16b,23(R),24(R),25-pentahydroxycycloartane (1), 3-O-[b-D-glucopyranosyl(1 ! 2)-b-Dxylopyranosyl]- 3b,16b,23(R),24(R)-tetrahydroxy-25-dehydrocycloartane (2), 3-O-[b-D-xylopyrano- syl]-6a-acetoxy-23a-methoxy-16b,23(R)-epoxy-24,25,26,27-tetranorcycloartane (3), 3-O-[b-D-xylo- pyranosyl]-6a-acetoxy-23a-butoxy-16b,23(R)-epoxy-24,25,26,27-tetranorcycloartane (4), 3-O-[b-Dglucopyranosyl( 1 ! 2)]-b-D-xylopyranosyl]-6a-acetoxy-23a-methoxy-16b,23(R)-epoxy-24,25,26,27- tetranorcycloartane (5), 3-O-[b-D-glucopyranosyl(1 ! 2)]-b-D-xylopyranosyl]-23a-methoxy-16b,23(R)- epoxy-4,25,26,27-tetranorcycloartane (6), in addition to three known secondary metabolites consisting of another cycloartane triterpene glycoside and two flavonol glycosides, were isolated from the aerial parts of Astragalus gombo Coss. & Dur. (Fabaceae). The structures of the isolated compounds were established by spectroscopic methods, including 1D and 2D-NMR, mass spectrometry and comparison with literature data.enArticle