Category: Uncategorized

Synthesis of Azadirachtin

Azadirachtin 11141-17-6  cas no Azadirachtin, a chemical compound belonging to the limonoid group, is asecondary metabolite present in neem seeds. It is a highly oxidizedtetranortriterpenoid which boasts a plethora of oxygen functionality, comprising an enol ether, acetal, hemiacetal, and tetra-substituted oxirane as well as a variety of carboxylic esters. This compound is a tetraterpenoid characteristic of the Meliaceae family but particularly from the Neem tree (A. indica), indigenous to… Continue reading Synthesis of Azadirachtin

Sweet Poison, Star fruit neurotoxin identified, caramboxin

    Star fruit neurotoxin identified Neurotoxin from Star Fruit Patients with kidney disease have to watch what they eat: bananas, oranges, tomatoes, nuts, broccoli, and beans are all off-limits. Putting star fruit or carambola on the menu would be downright dangerous. This fruit contains a substance that is a deadly neurotoxin for people with… Continue reading Sweet Poison, Star fruit neurotoxin identified, caramboxin

Whisky lactone

Whisky Lactone Whisky lactone, also known as β-methyl-γ-octalactone or quercus lactone (from the Latin for oak treeQuercus alba), is a flavouring found in American bourbon whiskies, and is also found in all types of oak. The flavour gets into the whisky when it’s matured in oak barrels. The pure molecule has a fierce, strong, and sweet smell… Continue reading Whisky lactone

Transition-metal-catalyzed C–C bond formation through the fixation ofcarbon dioxide

Carbon dioxide is an important carbon source in the atmosphere and is “problematic” toward the activities of human beings. Although carbon dioxide is a cheap, abundant and relatively nontoxic C1 source, its chemical transformations have not been widely developed so far and are still far from synthetic applications, especially in the construction of the C–C… Continue reading Transition-metal-catalyzed C–C bond formation through the fixation ofcarbon dioxide

RABEPRAZOLE

Pariprazole sodium;Rabeprazole sodium;LY-307640;E-3810;Aciphex;Pariet Rabeprazole /ˌræ.ˈbɛp.ræ.zɔːl/ is an antiulcer drug in the class of proton pump inhibitors. It was developed by Eisai Co. and is marketed by Janssen-Cilag as the sodium salt under the brand names AcipHex (/ˈæsɨfɛks/, referring to pH) in the US, Pariet in Europe, Brazil, Canada, Japan, Russia and Australia, Acigard, Cyra, Rabium, Esoon,Orporo, Parit, Rabemac, Rabiloz, Razo, Rabifast, Rablet and Rabsiv in India, and Zechin in… Continue reading RABEPRAZOLE

Axial-to-central chirality transfer in cyclization processes

Axial-to-central chirality transfer in cyclization processes Substrates, bearing axial chirality, can cyclize intra- or inter-molecularly with concomitant transfer of axial-to-central chirality to produce at least one stereocenter. In order to satisfy a strict definition of axial-to-central chirality transfer, the initial axial chirality must be lost during the cyclization process. Highly functionalized enantiopure carbocycles and heterocycles… Continue reading Axial-to-central chirality transfer in cyclization processes

Stem Cells in Clinic and Research

  http://www.intechopen.com/books/stem-cells-in-clinic-and-research Stem Cells in Clinic and Research Edited by Ali Gholamrezanezhad, ISBN 978-953-307-797-0, Hard cover, 804 pages, Publisher: InTech, Chapters published August 23, 2011 under CC BY-NC-SA 3.0 license DOI: 10.5772/740 Based on our current understanding of cell biology and strong supporting evidence from previous experiences, different types of human stem cell populations are capable of… Continue reading Stem Cells in Clinic and Research

STEM CELLS

  Stem cells are undifferentiated biological cells, that can differentiate into specialized cells and can divide (through mitosis) to produce more stem cells. They are found in multicellular organisms. In mammals, there are two broad types of stem cells: embryonic stem cells, which are isolated from the inner cell mass of blastocysts, and adult stem… Continue reading STEM CELLS