Chromone and phenanthrene alkaloids from Dennettia tripetala.

نویسندگان

  • Javier López-Martín
  • Edet M Anam
  • Herminio Boira
  • María Jesús Sanz
  • María Amparo Blázquez
چکیده

Dennettine, a new 2,6-dimethoxychromone and three known phenanthrene alkaloids (uvariopsine, stephenanthrine and argentinine) in addition to the phenolic and known compound vanillin were isolated from the roots of Dennettia tripetala. Their structures were determined by physical and spectroscopical one dimensional (1D) and 2D-NMR analysis, including heteronuclear multiple bond correlation and nuclear Overhauser enhancement spectroscopy.

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 Review of the Uses and Medicinal Properties of Dennettia tripetala (Pepperfruit)

Dennettia tripetala (commonly known as Pepperfruit) is widely consumed by the inhabitants of West Africa due to its distinctive spicy taste. It is also used traditionally as a remedy for cough, fever, toothache, diabetes, and nausea. The highly nutritious fruit is rich in protein, carbohydrates, as well as the antioxidant vitamins A, C, and E. The plant possesses phytochemicals that have been s...

متن کامل

Toxicity of Hexanolic Extract of Dennettia

The hexanolic extract of Dennellia tripetala was tested for acute toxicity on 3 Instar larvae of Aedes aegypti reared in the Laboratory at the Department of Zoology, University of Ibadan,. Six sets of graded concentrations 30pprn, 50ppm 60pprn 70pprn, 80ppm and 90ppm were tested for acute toxicity on the 3 instar larvae of Aedes agypti and total percentage mortalities recorded at intervals of 1...

متن کامل

Effect of ethanolic extract of Dennettia tripetala fruit on haematological parameters in albino Wistar rats.

The effect of oral administration of ethanolic extract of Dennettia tripetala fruits on haematological parameters in albino Wistar rats was investigated. Lethality studies revealed that the extract had an LD50 value of 251.19mg/kg mice intraperitoneal. Fifteen (15) male albino wistar rats weighing between 150 - 200g were used for the study and randomly assigned into three study groups of five a...

متن کامل

Bactericidal and antioxidant properties of essential oils from the fruits Dennettia tripetala G. Baker

BACKGROUND The antibacterial and antioxidant properties of the essential oils (EOs) of unripe and ripe fruits of Dennettia tripetala and their potential for the management of infectious and oxidative-stress diseases were investigated in-vitro in this study. METHOD Essential oil obtained from the fruit in Clevenger modified apparatus, was characterized by high resolution GC-MS, while antioxida...

متن کامل

Antinociceptive and antiinflammatory effects of essential oil of Dennettia tripetala G.Baker (Annonaceae) in rodents.

In this study we evaluated the analgesic and anti-inflammatory activities of the essential oil (EO) of the fruits of Dennettia tripetala in rodents. The plant is a tropical African plant and the fruits are commonly eaten as spices and consumed as a stimulant, and its various parts are used in the treatment of fever, cough and as anti-emetics.The analgesic effects of the oil was assessed in mice...

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:
  • Chemical & pharmaceutical bulletin

دوره 50 12  شماره 

صفحات  -

تاریخ انتشار 2002