107492-88-6Relevant articles and documents
Steroidal Saponins from Furcraea hexapetala Leaves and Their Phytotoxic Activity
Calle, Juan M.,Pérez, Andy J.,Simonet, Ana M.,Guerra, José O.,Macías, Francisco A.
, p. 2903 - 2911 (2016)
Four new steroidal saponins (1-4) along with 13 known saponins were isolated from the leaves of Furcraea hexapetala. The new compounds were identified as (20R,22R,25R)-3β-hydroxy-5α-spirostan-12-one 3-O-{α-l-rhamnopyranosyl-(1→4)-O-β-d-glucopyranosyl-(1→3)-O-[β-d-glucopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→2)]-O-β-d-glucopyranosyl-(1→4)-O-β-d-galactopyranoside} (1), (25R)-3β-hydroxy-5α-spirost-20(21)-en-12-one 3-O-{α-l-rhamnopyranosyl-(1→4)-O-β-d-glucopyranosyl-(1→3)-O-[β-d-glucopyranosyl-(1→3)-O-β-d-glucopyranosyl-(1→2)]-O-β-d-glucopyranosyl-(1→4)-O-β-d-galactopyranoside} (2), (25R)-5α-spirostan-3β-ol 3-O-{β-d-glucopyranosyl-(1→2)-O-β-d-glucopyranosyl-(1→2)-O-β-d-glucopyranosyl-(1→4)-O-β-d-galactopyranoside} (3), and (25R)-5β-spirostan-3β-ol 3-O-{β-d-glucopyranosyl-(1→6)-O-β-d-galactopyranoside} (4) by spectroscopic analysis, including one- and two-dimensional NMR techniques, mass spectrometry, and chemical methods. The phytotoxicity of the isolated compounds against the standard target species Lactuca sativa was evaluated. Structure-activity relationships for these compounds with respect to phytotoxic effects are discussed.
The NMR studies on two new furostanol saponins from Agave sisalana leaves
Zou, Peng,Fu, Jing,Yu, He-Shui,Zhang, Jie,Kang, Li-Ping,Ma, Bai-Ping,Yan, Xian-Zhong
, p. 1090 - 1095 (2008/02/04)
The detailed NMR studies and full assignments of the 1H and 13C spectral data for two new furostanol saponins isolated from Agave sisalana leaves are described. Their structures were established using a combination of 1D and 2D NMR techniques including 1H, 13C, 1H-1H COSY, TOCSY, HSQC, HMBC and HSQC-TOCSY, and also FAB-MS spectrometry and chemical methods. The structures were established as (25S)-26-(β-D-glucopyranosyl)-22ξ-hydroxyfurost-12-one-3β-yl-O- α-L-rhamnopyranosyl-(1→4)-β-D-glucopyranosyl-(1→3) -O-[O-β-D-glucopyranosyl-(1→2)]-O-β-D-glucopyranosyl-(1→4) -β-D-galactopyranoside (1) and (25S)-26-(β-D-glucopyranosyl)-22ξ- hydroxyfurost-5-en-12-one-3ξ-yl-O-α-L-rhamnopyranosyl-(1→4) -β-D-glucopyranosyl-(1→3)-O-[O-β-D-glucopyranosyl-(1→2)] -O-β-D-glucopyranosyl-(1→4)-β-D-galactopyranoside (2). Copyright
STEROIDAL SAPONINS FROM CHLOROPHYTUM MALAYENSE
Xing-Cong, Li,Wang, De-Zu,Yang, Chong-Ren
, p. 3893 - 3898 (2007/10/02)
Four new steroidal saponins, chloromalosides A-D, were isolated from the rhizomes of Chlorophytum malayense.On the basis of detailed chemical and spectroscopic evidence, the structures of chloromalosides A-D were elucidated to be neohecogenin 3-O-β-D-glucopyranosyl(1->2)-3)>-β-D-glucopyranosyl(1->4)-β-D-galactopyranoside, 26-β-D-glucopyranosyl-22-hydroxy-25(S)-5α-furostane-3β,26-diol-3-O-β-D-glucopyranosyl(1->2)-3)>-β-D-glucopyranosyl(1->4)-β-D-galactopyranoside, neohecogenin 3-O-β-D-xylopyranosyl(1->3)-2)>-β-D-glucopyranosyl(1->4)-2)>-β-D-galactopyranoside and neotigogenin 3-O-β-D-xylopyranosyl(1->3)-2)>-β-D-glucopyranosyl(1->4)-2)>-β-D-galactopyranoside, respectively.
