@misc{10498/20349,
year = {2016},
month = {10},
url = {http://hdl.handle.net/10498/20349},
abstract = {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-Lrhamnopyranosyl-(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-Lrhamnopyranosyl-(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.},
publisher = {ACS Publications},
keywords = {Furcraea hexapetala},
keywords = {Phytotoxic activity},
keywords = {saponins},
keywords = {Steroidal saponins},
title = {Steroidal Saponins from Furcraea hexapetala Leaves and Their Phytotoxic Activity},
doi = {10.1021/acs.jnatprod.6b00702},
author = {Calle, Juan M. and Pérez, Andy J. and Guerra, José O. and Simonet Morales, Ana María and Macías Domínguez, Francisco Antonio},
}