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Volumn 20, Issue 18, 2010, Pages 5459-5461

Styrylpyrones from the medicinal fungus Phellinus baumii and their antioxidant properties

Author keywords

Antioxidant; Fenton reaction; Iron chelator; Phellinus baumii; Styrylpyrones

Indexed keywords

ANTIOXIDANT; BAUMIN; DAVALLIALACTONE; HISPIDIN; HYPHOLOMINE B; INOSCAVIN A; INTERFUNGIN A; PHELLIGRIDIN D; PYRONE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 77956177943     PISSN: 0960894X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.bmcl.2010.07.093     Document Type: Article
Times cited : (62)

References (21)
  • 14
    • 77956180007 scopus 로고    scopus 로고
    • note
    • 2O. The ethyl acetate-soluble fraction was subjected to a column of Sephadex LH-20 eluted with MeOH to give three fractions (Fr-1, Fr-2, and Fr-3), which were divided by monitoring with HPLC (LaChrom Elite HPLC, Hitachi Co., Tokyo, Japan). HPLC conditions were as follows: column, TSK gel ODS-100 V (4.6 × 150 mm, Tosoh Co., Tokyo, Japan); solvent, a gradient with an increasing amount of MeOH (10 → 90%) in water/0.04% trifluoroacetic acid (TFA); flow rate, 1.0 mL/min; detector, photodiode array detector. Compounds 1-5 were purified from Fr-1 as follows; Fr-1 was separated by solid phase extraction by eluting with 50-60% aqueous MeOH to provide two fractions. One fraction was concentrated under reduced pressure to provide compound 4 (60 mg). The other fraction was separated on a column of Sephadex LH-20 with 70% aqueous MeOH to afford three fractions, Fr-1-1, Fr-1-2, and Fr-1-3. The Fr-1-1 fraction was purified by preparative reversed-phase HPLC on a column (Cosmosil RP-18, 20 × 150 mm) and eluted with 40% aqueous MeOH containing 0.04% TFA to give compounds 1 (8 mg) and 2 (20 mg). Fr-1-2 and Fr-1-3 fractions were purified, respectively, by reversed-phase TLC with 60% aqueous MeOH to provide 3 (13 mg) and 5 (7 mg), respectively. Fraction Fr-2 was separated by solid phase extraction, eluting with 50-60% aqueous MeOH, followed by Sephadex LH-20 column chromatography, and eluted with 70% aqueous MeOH to give compound 6 (4 mg). Compound 7 (8 mg) was purified from Fr-3 using Sep-pak ODS cartridge, and eluted with 50-60% aqueous MeOH.
  • 15
    • 77956175088 scopus 로고    scopus 로고
    • note
    • 11, 523.1241).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.