A new acylated triterpene from the roots of Chaenomeles japonica.

نویسندگان

  • Yong Nan Xu
  • Ju Sun Kim
  • Sam Sik Kang
  • Kun Ho Son
  • Hyun Pyo Kim
  • Hyeun Wook Chang
  • KiHwan Bae
چکیده

A new acylated triterpene together with prunasin, (-)-epicatechin, daucosterol, and three triterpenes, ursolic, oleanolic, and pomolic acids was isolated from the root of Chaenomeles japonica (THUNB.) LINDL. (Rosaceae) and determined to be 3-O-(E)-3, 5-dihydroxycinnamoylursolic acid on the basis of NMR and FAB-MS experiments.

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

A new acylated flavonol glycoside from the leaves of Eriobotrya japonica.

A new acylated flavonol glycoside was isolated from the leaves of Eriobotrya japonica along with two known flavonol glycosides. Their structures were determined by extensive spectroscopic investigation.

متن کامل

Polyphenols and triterpenes from Chaenomeles fruits: chemical analysis and antioxidant activities assessment.

Mugua, fruit of the genus Chaenomeles, is a valuable source of health food and Chinese medicine. To elucidate the bioactive compounds of five wild Chaenomeles species, extracts from fresh fruits were investigated by HPLC-DAD/ESI-MS/MS. Among the 24 polyphenol compounds obtained, 20 were flavan-3-ols (including catechin, epicatechin and procyanidin oligomers). The mean polymerisation degree (mDP...

متن کامل

Glycosyltransferases from oat (Avena) implicated in the acylation of avenacins.

Plants produce a huge array of specialized metabolites that have important functions in defense against biotic and abiotic stresses. Many of these compounds are glycosylated by family 1 glycosyltransferases (GTs). Oats (Avena spp.) make root-derived antimicrobial triterpenes (avenacins) that provide protection against soil-borne diseases. The ability to synthesize avenacins has evolved since th...

متن کامل

Chaenomeles: Potential New Fruit Crop for Northern Europe

INTRODUCTION A number of plant species, that have only rarely been cultivated in the past, are now being investigated for possible domestication in northern Europe. Species within the Rosaceous genus Chaenomeles (also referred to as the common name of these species) have received increased attention because of their high yield of fruits, which are rich in juice, aroma, and dietary fiber, and be...

متن کامل

Ilexpublesnins C–M, Eleven New Triterpene Saponins from the Roots of Ilex pubescens

Eleven new triterpene saponins, ilexpublesnins C–M (1–11), along with ten known analogues were isolated from the roots of Ilex pubescens. Their structures were elucidated on the basis of extensive spectroscopic analysis, including 1D and 2DNMR experiments. Compounds 1, 2, 10, and 11 contain a 24-aldehyde, which is rare for triterpene saponins from Ilex. These compounds were evaluated in vitro f...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  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:
  • Chemical & pharmaceutical bulletin

دوره 50 8  شماره 

صفحات  -

تاریخ انتشار 2002