Sugar esters from Globularia orientalis.

نویسندگان

  • Ihsan Caliş
  • Hasan Kirmizibekmez
  • Deniz Tasdemir
  • Otto Sticher
  • Chris M Ireland
چکیده

From the methanolic extract of the underground parts of Globularia orientalis, a new antioxidant sugar ester was isolated. The structure of the new compound, globularitol (1), was identified as 6-O-feruloyl-beta-D-glucopyranosyl-(1-->6)-glucitol by spectroscopic methods (1D and 2D NMR, ESI- and FAB-MS) and confirmed by chemical means.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ferulone A and ferulone B: two new coumarin esters from Ferula orientalis L. roots.

Ferula orientalis (Apiaceae) is a well-known perennial herb growing wild in Iran used in traditional medicine. To perform phytochemical studies, dried ground roots of F. orientalis were sequentially Soxhlet-extracted using n-hexane, dichloromethane and methanol. A combination of vacuum liquid chromatography and preparative thin-layer chromatographic analyses were performed to isolate coumarin e...

متن کامل

Iridoid glycosides from Globularia davisiana.

From the ethanolic extract of the aerial parts of Globularia davisiana, a new iridoid glycoside, davisioside (1), was isolated. Davisioside (1) comprises a rare iridoid aglycone structure with a saturated double bond between C-3 and C-4. Nine known iridoid glycosides, asperuloside (2), alpinoside (3), geniposide (4), globularin (5), globularicisin (6), 10-O-benzoylcatalpol (7), lytanthosalin (8...

متن کامل

Biol. Pharm. Bull. 28(9) 1689—1694 (2005)

drug administration. However, the barrier properties of the outermost layer, the stratum corneum, have limited the number of successful transdermal dosage forms developed thus far. One of the strategies for overcoming this problem is temporary local reduction of the barrier function of the stratum corneum with the aid of a percutaneous absorption enhancer. Sucrose fatty acid esters (sugar ester...

متن کامل

Iridoid and bisiridoid glycosides from Globularia cordifolia.

From the methanolic extract of the underground parts of Globularia cordifolia, a new iridoid glycoside, 5-hydroxydavisioside (1) and a new bisiridoid glycoside, globuloside C (2) were isolated along with six known iridoid glycosides, aucubin, melampyroside, monomelittoside, globularifolin, alpinoside and asperuloside. The structures of the isolates were established by 1D and 2D NMR spectroscopy...

متن کامل

Lipase mediated synthesis of sugar fatty acid esters

This review is concerned with lipase catalyzed synthesis of sugar fatty acid esters in water immiscible organic solvents. Sugar esters are widely used nonionic and nontoxic biosurfactants. Certain sugar esters inhibit microbial growth and have other activities. Lipase mediated synthesis has important advantages over conventional chemical synthesis of sugar esters. Lipase catalyzed synthesis is ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Zeitschrift fur Naturforschung. C, Journal of biosciences

دوره 57 7-8  شماره 

صفحات  -

تاریخ انتشار 2002