Four new steroidal saponins from the seeds of Allium tuberosum

Shengmin Sang; Shilong Mao; Aina Lao; Zhongliang Chen; Chi-Tang Ho

doi:10.1021/jf001062b

Four new steroidal saponins from the seeds of Allium tuberosum

Shengmin Sang
, Shilong Mao
, Aina Lao
, Zhongliang Chen
, Chi-Tang Ho

Family and Consumer Sciences

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Four new steroidal saponins, 26-O-β-D-glucopyranosyl-(25S,20R)-20-O-methyl-5α-furost- 22(23)en-2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)- [α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (1); 26-O-β-D-glucopyranosyl-(25S,20R)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L- rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (2); 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-D-glucopyranoside (3); and 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 3β,20,26-triol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-β-glucopyranoside (4), have been isolated from the seeds of Allium tuberosum. Their structures were established by spectroscopic studies such as MS, IR, NMR, and 2D-NMR and the results of acid hydrolysis and named tuberosides F, G, H, and I, respectively.

Original language	English
Pages (from-to)	1475-1478
Number of pages	4
Journal	Journal of Agricultural and Food Chemistry
Volume	49
Issue number	3
DOIs	https://doi.org/10.1021/jf001062b
State	Published - Oct 2 2001

Keywords

Allium tuberosum
Liliaceae
Steroidal saponins
Tuberoside F, G, H, I

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10.1021/jf001062b

Cite this

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title = "Four new steroidal saponins from the seeds of Allium tuberosum",

abstract = "Four new steroidal saponins, 26-O-β-D-glucopyranosyl-(25S,20R)-20-O-methyl-5α-furost- 22(23)en-2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)- [α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (1); 26-O-β-D-glucopyranosyl-(25S,20R)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L- rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (2); 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-D-glucopyranoside (3); and 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 3β,20,26-triol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-β-glucopyranoside (4), have been isolated from the seeds of Allium tuberosum. Their structures were established by spectroscopic studies such as MS, IR, NMR, and 2D-NMR and the results of acid hydrolysis and named tuberosides F, G, H, and I, respectively.",

keywords = "Allium tuberosum, Liliaceae, Steroidal saponins, Tuberoside F, G, H, I",

author = "Shengmin Sang and Shilong Mao and Aina Lao and Zhongliang Chen and Chi-Tang Ho",

year = "2001",

month = oct,

day = "2",

doi = "10.1021/jf001062b",

language = "English",

volume = "49",

pages = "1475--1478",

journal = "Journal of Agricultural and Food Chemistry",

issn = "0021-8561",

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T1 - Four new steroidal saponins from the seeds of Allium tuberosum

AU - Sang, Shengmin

AU - Mao, Shilong

AU - Lao, Aina

AU - Chen, Zhongliang

AU - Ho, Chi-Tang

PY - 2001/10/2

Y1 - 2001/10/2

N2 - Four new steroidal saponins, 26-O-β-D-glucopyranosyl-(25S,20R)-20-O-methyl-5α-furost- 22(23)en-2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)- [α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (1); 26-O-β-D-glucopyranosyl-(25S,20R)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L- rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (2); 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-D-glucopyranoside (3); and 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 3β,20,26-triol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-β-glucopyranoside (4), have been isolated from the seeds of Allium tuberosum. Their structures were established by spectroscopic studies such as MS, IR, NMR, and 2D-NMR and the results of acid hydrolysis and named tuberosides F, G, H, and I, respectively.

AB - Four new steroidal saponins, 26-O-β-D-glucopyranosyl-(25S,20R)-20-O-methyl-5α-furost- 22(23)en-2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)- [α-L-rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (1); 26-O-β-D-glucopyranosyl-(25S,20R)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L- rhamnopyranosyl-(1→4)]-β-D-glucopyranoside (2); 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 2α,3β,20,26-tetraol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-D-glucopyranoside (3); and 26-O-β-D-glucopyranosyl-(25S,20S)-5α-furost-22(23)-en- 3β,20,26-triol 3-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl- (1→4)]-β-β-glucopyranoside (4), have been isolated from the seeds of Allium tuberosum. Their structures were established by spectroscopic studies such as MS, IR, NMR, and 2D-NMR and the results of acid hydrolysis and named tuberosides F, G, H, and I, respectively.

KW - Allium tuberosum

KW - Liliaceae

KW - Steroidal saponins

KW - Tuberoside F, G, H, I

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JF - Journal of Agricultural and Food Chemistry

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Four new steroidal saponins from the seeds of Allium tuberosum

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