The genus Piper, a member of the Piperaceae family, comprises> 2000 species, of which
many are well known to possess considerable economic and medicinal values. Lignans are …

Background: The genus Piper L. has the shikimic acid pathway predominantly expressed,
biosynthesizing many cinnamic acid derivatives (CAD). Objective: Neolignans comprise an …

The genus Piper is one of the largest genera in the Piperaceae, with most species widely
distributed globally, covering all continents. To date, many Piper species have been …

Lignans, which are widely distributed in higher plants, represent a vast and rather diverse
group of phenylpropane derivatives. They have attracted considerable attention due to their …

REVIEW ARTICLE NUMBER 77 Page 1 Phytochernistry, Vol. 33, No. 3, pp. 523-530, 1993
Printed in Great Britain. 003 l-9422/93 $6.00 + 0.00 Q 1993 Fergamon F’ress Ltd REVIEW …

Lignans, with various biological activities, such as antitumor, antioxidant, antibacterial, and
antiviral activities, are widely distributed in nature and mainly exist in the xylem of plants. In …

The plant kingdom has formed the basis of folk medicine for thousands of years and
nowadays continues to provide an important source to discover new biologically active …

Lignans are widely occurring plant compounds and are closely related to lignin, which forms
the woody component of trees and other plants. The lignans are characterized by their …

Two new neolignans,(7R, 8R, 3′ R)-7-acetoxy-3′, 4′-dimethoxy-3, 4-methylenedioxy-
6′-oxo-Δ-1′, 4′, 8′-8.3′-lignan (1) and (7R, 8R, 3′ R)-7-hydroxy-3′, 4′-dimethoxy …

Objective: Piper has been used for long timelike condiment and food, but also in traditional
medicine around of the world. This work resumes the available and up to date work done on …