Naturally Occurring Oxygen Ring Compounds

A naturally occurring ring seborrheic keratosis.

NATURALLY OCCURRING MOLECULES BEARING CHIRAL y-BUTY ROLACTONE RING SYSTEMS

Transformations of optically active natural products such as arninoacids, hydroxy acids, carbohydrates etc, optical resolution of an intermediate or final products and chemical or biochemical synthesis are few of the methods to obtain enantiomerically pure compounds. Out of thes chemical or biochemical synthesis 3 is clearly attractive since it offers a great variation of solutions as well as c...

Naturally Occurring Compounds for Control of Harmful Snails

Ten naturally occurring compounds have been tested for molluscicidal activity against the fresh water snail, Biomphalaria alexandrina and the white garden snail, Theba pisana. The role of the synergist, piperonyl butoxide (PB) in improving the efficacy of these chemicals was also investigated. The results showed that thymol was the most effective against B. alexandrina snails, followed by trans...

Naturally occurring ehrlichiosis in Egyptian dogs

Canine ehrlichiosis has emerged as one of the most clinically important tick-borne diseases affecting dogs. Eighty-five naturally infected dogs have been investigated, the most consistent clinical signs recorded were fever, emaciation and lymphoadenopathy, anemia, monocytosis, thrompocytopenia, hypoalbuminemia, elevation in liver enzymes and total bilirubin were the most remarkable changes asso...

Naturally Occurring Isocyano/Isothiocyanato Compounds: Their Pharmacological and SAR Activities

Dmitri O Levitsky1, Tatyana A Gloriozova2, Vladimir V Poroikov2, Valery M Dembitsky3 1CNRS UMR 6204, Biotechnologie, Biocatalyse et Biorégulation, Faculté des Sciences et des Techniques, Université de Nantes Nantes, 44322 Nantes Cedex 03, France. 2Institute of Biomedical Chemistry, Moscow 119121, Russia. 3Institute for Drug Discovery, P.O. Box 45289, Jerusalem 91451, Israel. Corresponding Autho...