A new lignan glucoside from the stems of Callicarpa japonica Thunb. var. luxurians Rehd.

Ono, M.; Mishima, Kenji; Yamasaki, Toru; Masuoka, Chikako; Okawa, Masafumi; Kinjo, Junei; Ikeda, Tsuyoshi; Nohara, Toshihiro

doi:10.1007/s11418-008-0289-1

Cited by 17 publications

(9 citation statements)

References 16 publications

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“…All instruments and materials used were the same as cited in a previous report 24) unless otherwise specified. Plant Material The fruit of Vitex agnus-castus L. was purchased in May 2006 from Charis Seijo Co., Ltd., a commercial supplier of herbs in Tokyo, Japan and identified by one of authors (T. Nohara).…”

Section: Methodsmentioning

confidence: 99%

“…Although, the absolute configurations of 2 and 3 have not been confirmed, they are probably the same as that of 1 from a biogenetic point of view. However, 2-7 might be artifacts produced from aldehydes during the isolation procedures, because of co-occurrence of epimers at C- 16 During the course of our studies on natural antioxidants, 23,24) the antioxidatve properties of 17, which was isolated as a major compound in this study, was evaluated using several measurements, i.e., superoxide anion (O 2 Ϫ ) radical scavenging assay, nitrogen oxide (NO) scavenging assay, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay, hydrogen peroxide (H 2 O 2 ) scavenging assay, and metal chelating assay on ferrous ion. The scavenging activities on O 2 Ϫ radical, NO, DPPH radical, and H 2 O 2 were ca.…”

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A New Diterpenoid Glucoside and Two New Diterpenoids from the Fruit of Vitex agnus-castus

et al. 2011

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Section: Methodsmentioning

confidence: 99%

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A New Diterpenoid Glucoside and Two New Diterpenoids from the Fruit of Vitex agnus-castus

et al. 2011

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“…All instruments and materials used were the same as cited in a previous report 15) unless otherwise specified. Plant Material The bulbs of S. scilloides were cultivated in Kumamoto prefecture, Japan, and were harvested in August 2005, and identified by one of authors (T. Nohara).…”

Section: Methodsmentioning

confidence: 99%

Three New Nortriterpene Glycosides and Two New Triterpene Glycosides from the Bulbs of Scilla scilloides

Ono

Toyohisa

Morishita

et al. 2011

CHEMICAL & PHARMACEUTICAL BULLETIN

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Scilla scilloides DRUCE is a perennial herb belonging to the Liliaceae family. The bulb of this plant has been used as a foodstuff, a traditional medicine for promoting blood circulation, an anti-inflammatory agent, and an analgesic.1) With regard to the chemical constituents of this bulb, the presence of homoisoflavones, norlanostane-type triterpenes, and lanostane-type triterpenes has been reported. [2][3][4][5][6] In a previous paper, 7) we reported the isolation and structural elucidation of a new homostilbene and two new homoisoflavones from the methanol (MeOH) extract of fresh bulbs of S. scilloides along with 13 known compounds consisting of a homostilbene, seven homoisoflavones, a xanthone, a lignan, and three norlanostane-type triterpenes. As part of an ongoing study of this plant, we describe the isolation and structural characterization of three new norlanostane-type triterpene glycosides and two new lanostane-type triterpene glycosides along with one known norlanostane-type triterpene glycoside from the MeOH extract. 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan: and d Faculty of Pharmaceutical Sciences, Sojo University; 4-22-2 Ikeda, Kumamoto 860-0082, Japan. Received June 17, 2011; accepted August 18, 2011; published online August 23, 2011 Three new norlanostane-type triterpene glycosides, scillanostasides A, B, and C, and two new lanostane-type triterpene glycosides, scillanostasides D and E, were isolated from the bulbs of Scilla scilloides DRUCE (Liliaceae) along with one known norlanostane-type triterpene heptaglycoside, scillascilloside G-1. Their chemical structures were determined on the basis of spectroscopic data as well as chemical evidence.

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“…All instruments and materials used were the same as those cited in a previous report, 15) 13 C-NMR data: see Table 1. …”

Section: Methodsmentioning

confidence: 99%

Steroidal Glycosides from the Fruits of Solanum viarum

et al. 2009

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Solanum viarum DUNAL (syn. S. khasianum var. chatterjeeanum, Solanaceae) is a major source of steroidal raw material, and four glycosides of solasodine and diosgenin are reported to occur in its fruits and roots, respectively. 1) As part of a continuing study of the steroidal constituents of solanaceous plants, 2) we now describe the isolation and structural elucidation of three new steroidal glycosides and seven known steroidal glycosides from the fruits of S. viarum.The MeOH extract of the fruits of S. viarum was successively subjected to Diaion HP20, silica gel, Sephadex LH-20, and Chromatorex octadecyl silica (ODS) column chromatography as well as HPLC on ODS, to afford ten steroidal glycosides (1-10).Compounds 4-10 were identified as P-d [pregna-5,16-dien-3b-ol-20-one 4,7) anguivioside XV (9), 8,9) and aculeatiside A (10), 10) respectively, based on comparison with their physical and spectral data with authentic samples or those already reported ( Fig. 1 C-NMR signals were assigned in detail with the help of 1 H-1 H correlation spectroscopy (COSY), heteronuclear multiple quantum coherence (HMQC), and heteronuclear multiple bond correlation (HMBC) spectra, and the planar structure of 1 was determined (Fig. 2). The 13 C-NMR data of the A and B rings of the aglycone moiety and the sugar moiety were considerably similar to those of 8, and nuclear Overhauser effect (NOE) correlations were observed between H-14 and H-17, H 3 -18 and H-20, and H 3 -18 and H 3 -21 in the nuclear Overhauser ef- Three new steroidal glycosides, named solaviasides A, B, and C, have been isolated from the fruits of Solanum viarum DUNAL (syn. S. khasianum var. chatterjeeanum, Solanaceae), along with seven known ones. Their chemical structures were determined on the basis of spectroscopic data and chemical evidence.

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A new lignan glucoside from the stems of Callicarpa japonica Thunb. var. luxurians Rehd.

Cited by 17 publications

References 16 publications

A New Diterpenoid Glucoside and Two New Diterpenoids from the Fruit of Vitex agnus-castus

A New Diterpenoid Glucoside and Two New Diterpenoids from the Fruit of Vitex agnus-castus

Three New Nortriterpene Glycosides and Two New Triterpene Glycosides from the Bulbs of Scilla scilloides

Steroidal Glycosides from the Fruits of Solanum viarum

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