Chemical and chemotaxonomical studies on filices. LVIII. Chemical studies on the constituents of Monachosorum arakii Tagawa (Pteridaceae).

Studies on the Chemical Constituents of

Azadirachta indica A. Juss (Meliaceae) is indige­ nous to the Indo-Pakistan subcontinent and its various parts are reputed as therapeutic agents [2, 3]. Some of the constituents of neem have recently been shown to possess significant pesticidal activity [4]. More recent studies undertaken on the fresh, un­ dried, uncrushed, ripe and unripe, fruits and the un­ dried leaves of the plant by Siddiq...

Chemical constituents of Pteris cretica Linn. (Pteridaceae)

1. Subject and Source The group of fern from the genus Pteris (Pteridaceae) contains 250 cosmopolitan species (Mabberley, 1997). One species, P. cretica (Japanese name: ohbano-inomotoso) called Cretan brake fern is widely distributed in the temperate and warm area of Japan. Although some fern members of the family Pteridaceae are well known to contain carcinogenic C-14 illudane-type sesquiterpe...

Studies on the Chemical Constituents of Thymus serpyllum

Phytochemical investigations on the methanolic extract of Thymus serpyllum resulted in the isolation of 2 new compounds, 3-ketopentatriacontanoic acid (1) and 27-ketotriacontanol (2). The extract also afforded 3 known compounds, 3 β-hydroxyolean-12-en-28-oic acid (3), 3-O-β-D-glucopyranosyl-sitosterol (4), and dihydroursonic acid (5), detected for the first time from Thymus serpyllum. The struc...

Chemical biology studies on norrisolide.

The cellular activity of norrisolide (7), a novel Golgi-vesiculating agent, was dissected as function of its chemical structure. This natural product induces irreversible vesiculation of the Golgi membranes and blocks protein transport at the level of the Golgi. The Golgi localization and fragmentation effects of 7 depend on the presence of the perhydroindane core, while the irreversibility of ...

Chemical Studies on Sludge Digestion