Revised structure for hortensin, a flavonoid from Millingtonia hortensis

Hase, Takeshi; Ohtani, Kazuhiro; Kasai, Ryoji; Yamasaki, Kazuo; Picheansoonthon, Chayan

doi:10.1016/0031-9422(95)00206-m

Cited by 74 publications

(44 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(Gu et al, 2001), Salvia officinalis (Kavvadias et al, 2003) and Artemisia species (Tan et al, 1999). The spectral data of 1 were in accordance with published results (Hase et al, 1995).…”

Section: Resultssupporting

confidence: 77%

“…The spectroscopic data identified 1 as the known 4',5,7-trihydroxy-6-methoxyflavone which is trivially referred to as hispidulin and has been previously isolated from a variety of plant species including Millingtonia hortensis L. (Chulasiri et al, 1992 andHase et al, 1995), Salvia plebeia R. Br. (Gu et al, 2001), Salvia officinalis (Kavvadias et al, 2003) and Artemisia species (Tan et al, 1999).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Hispidulin And Other Constituents Of Scoparia dulcis Linn

Osei‐Safo¹,

Chama²,

Addae‐Mensah³

et al. 2009

Jnl Sci Tech

View full text Add to dashboard Cite

Phytochemical investigation of the ethanol extract of the whole plant of Scoparia dulcis, has resulted in the isolation of 4, 5, 7-trihydroxy-6-methoxyflavone, commonly called hispidulin and a steroidal glycoside, β-sitosterol-β-D-glucoside. This is the first isolation of the two compounds from S. dulcis. Also isolated and characterized were the previously reported 6-methoxybenzoxazolinone, friedelan-3-one and scopadulcic acid B. Structural elucidation was done on the basis of spectroscopic data interpretations (IR, UV, NMR and EIMS). Using the Tetrazolium-based colorimetric selective assay, hispidulin was found to be inactive against HIV-1/ IIIB in MT-4 cells whereas the same test on the aqueous extract of the plant was positive.

show abstract

“…(Gu et al, 2001), Salvia officinalis (Kavvadias et al, 2003) and Artemisia species (Tan et al, 1999). The spectral data of 1 were in accordance with published results (Hase et al, 1995).…”

Section: Resultssupporting

confidence: 77%

Section: Resultsmentioning

confidence: 99%

Hispidulin And Other Constituents Of Scoparia dulcis Linn

Osei‐Safo¹,

Chama²,

Addae‐Mensah³

et al. 2009

Jnl Sci Tech

View full text Add to dashboard Cite

show abstract

“…HPLC to afford 27 compounds. Twenty two were identified as known compounds; plucheoside B (1), alangionoside C (2) (Otsuka et al, 1995), premnaionoside (4) (Sudo et al, 2000), (2R)-2-O-b-d-glucopyranosyl-2H-1,4-benzoxazin-3(4H)-one (HBOA-Glc, 8) (Tietze et al, 1991), (2R)-2-O-b-d-glucopyranosyl-4-hydroxy-2H-1,4-benzoxazin-3(4H)-one (DIBOA-Glc, 9) (Hartenstein and Sicker, 1994) (Ono et al, 1999) (Okamura et al, 1981), adenosine (13) (Otsuka et al, 1989), verbascoside (14), isoverbascoside (15), leucosceptoside A (16) (Miyase et al, 1982), martynoside (17) (Sasaki et al, 1978), b-hydroxyacteoside (18) (Kitakawa et al, 1984), vecenin-2 (19), schaftoside (20) (Markham and Chari, 1982) (Hase et al, 1995) (Achenbach et al, 1992) (Ida et al, 1994), magnolenin C (26) (Rao and Wu, 1978), and ( (Kinjo et al, 1991) by comparison of physical data with literature values and from spectroscopic evidence.…”

Section: Resultsmentioning

confidence: 99%

Megastigmane, aliphatic alcohol and benzoxazinoid glycosides from Acanthus ebracteatus

et al. 2001

Self Cite

View full text Add to dashboard Cite

“…Furthermore, the proton signals of the methoxyl groups at δ H 3.65 and 3.75 showed long-range correlation with C-6″ (δ C 169.79) and C-6 (δ C 132.97) indicated the location of the methoxyl groups at position-6″ of the glucuronic acid and C-6 of aglycone, respectively. Based on these data and comparison with literature data, 17 1 was determined to be hispidulin-7-O-glucuronide methyl ester. Furthermore, it revealed an anomeric proton signal appeared at δ H 5.07 (1H, d, J=7.2 Hz) indicated the presence of β-D-glucopyranosyl moiety.…”

Section: Resultsmentioning

confidence: 86%

Chemical Constituents with Free-Radical- Scavenging Activity from the Leaves of Lantana montevidensis (Spreng.) Briq.

Makboul¹,

Attia²,

Farag³

et al. 2014

phcog J

View full text Add to dashboard Cite

Background: Seventy percent aqueous methanolic extract of the leaves of Lantana montevidensis exhibited antibacterial, anti-inflammatory, anti-pyretic, antioxidant, and analgesic activities. Previous phytochemical study of the leaves led to the isolation of various flavones, pentacyclic triterpenoids, β-sitosterol and benzoic acid. Materials and Methods: The 70% aqueous methanolic extract of L. montevidensis (Spreng.) Briq. leaves was partitioned between water and n-hexane, ChCl 3 , etOac, and n-BuOh, successively. By using a series of different chromatographic techniques, the ChCl 3 and EtOAc extracts afforded nine compounds. The isolated compounds were identified by spectroscopic techniques and by comparison with literature values and/or authentic samples. the free radical scavenging activity of some of the isolated compounds was evaluated. Results: Hispidulin-7-O-glucurnoide methyl ester (1), hispidulin-7-O-glucoside (2), cinaroside (3), nepetin-7-O-glucoside (4) pectolinarigenin (5), apigenin (6), luteolin (7) in addition to salicylic acid (8) and β-sitosterol-3-O-glucoside (9) have been isolated. Compounds 1-4 are first report from the genus Lantana, whereas compounds 5, 8 and 9 are first report from this plant. The structures of these compounds were elucidated on the basis of spectral methods, including 2D nuclear magnetic resonance experiments, and confirmed by comparing with the literature data and/or authentic samples. Additionally, some of the isolated flavonoids exhibited free radical scavenging activity. Conclusion: L. montevidensis (Spreng.) Briq. cultivated in egypt is rich in biologically active ingredients.

show abstract

Revised structure for hortensin, a flavonoid from Millingtonia hortensis

Cited by 74 publications

References 9 publications

Hispidulin And Other Constituents Of Scoparia dulcis Linn

Hispidulin And Other Constituents Of Scoparia dulcis Linn

Megastigmane, aliphatic alcohol and benzoxazinoid glycosides from Acanthus ebracteatus

Chemical Constituents with Free-Radical- Scavenging Activity from the Leaves of Lantana montevidensis (Spreng.) Briq.

Contact Info

Product

Resources

About