|
Mallotophenone
Mallotophenone is a dimeric phloroglucinol found in ''Mallotus oppositifolius'' or in ''Mallotus japonicus''. The bioassay-guided fractionation of an ethanol extract of the leaves and inflorescence of ''M. oppositifolius'' collected in Madagascar led to the isolation of the two new bioactive dimeric phloroglucinols mallotophenone, together with mallotojaponins B and C. These compounds show antiproliferative and antiplasmodial ''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a verteb ... activities. References Phloroglucinols Natural phenol dimers {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phloroglucinol
Phloroglucinol is an organic compound with the formula C6H3(OH)3. It is a colorless solid. It is used in the synthesis of pharmaceuticals and explosives. Phloroglucinol is one of three isomeric benzenetriols. The other two isomers are hydroxyquinol (1,2,4-benzenetriol) and pyrogallol (1,2,3-benzenetriol). Phloroglucinol, and its benzenetriol isomers, are still defined as "phenols" according to the IUPAC official nomenclature rules of chemical compounds. Many such monophenolics are often termed "polyphenols" by the cosmetic and parapharmaceutical industries, which does not match the scientifically accepted definition. Synthesis and occurrence In 1855, phloroglucinol was first prepared from phloretin by the Austrian chemist Heinrich Hlasiwetz (1825–1875). A modern synthesis of involves hydrolysis of benzene-1,3,5-triamine and its derivatives. Representative is the following route from trinitrobenzene. : The synthesis is noteworthy because ordinary aniline derivatives are unre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallotus Oppositifolius
''Mallotus oppositifolius'' is a plant species in the genus ''Mallotus'' found in Africa and Madagascar. The variety ''Mallotus oppositifolius'' var. ''lindicus'' is classified in the IUCN red list of vulnerable species of plants. The aqueous and ethanol extracts of the plant show antifungal properties, and anti parasitic activity against blastocystis hominis. The bioassay-guided fractionation of an ethanol extract of the leaves and inflorescence of ''M. oppositifolius'' collected in Madagascar led to the isolation of the two new bioactive dimeric phloroglucinols mallotojaponins B and C, together with mallotophenone. These compounds show antiproliferative and antiplasmodial ''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a verteb ... (antimalarial) activities. References Extern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallotus Japonicus
''Mallotus japonicus'' (), also known as East Asian mallotus, the food wrapper plant or "Akamegashiwa" in Japanese, is a plant species in the genus ''Mallotus'' native to China. It is also found in Japan and Korea. This species was first described in 1865, its name was verified by AAS Systematic Botanists on October 2, 2015. The plant is dioecious. The young shoots are red-coloured. The larvae of the moth '' Deoptilia heptadeta'' mine the leaves to feed. Uses The large leaves were used to wrap food. The young leaves, when boiled, are edible. The bark is used in the Japanese pharmacopoeia as a decoction against gastric ulcer, duodenal ulcer, gastric hyperacidity. In addition, the fruit has anthelmintic properties. Ecology ''Mallotus japonicus'' shows physical, chemical, and biotic resistance traits against herbivores. Trichomes, which are produced on leaf surfaces, serve as a physical resistance trait. Pellucid dots, which also are present on leaf surfaces, typically conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioassay-guided Fractionation
Fractionation is a separation process in which a certain quantity of a mixture (of gases, solids, liquids, enzymes, or isotopes, or a suspension) is divided during a phase transition, into a number of smaller quantities (fractions) in which the composition varies according to a gradient. Fractions are collected based on differences in a specific property of the individual components. A common trait in fractionations is the need to find an optimum between the amount of fractions collected and the desired purity in each fraction. Fractionation makes it possible to isolate more than two components in a mixture in a single run. This property sets it apart from other separation techniques. Fractionation is widely employed in many branches of science and technology. Mixtures of liquids and gases are separated by fractional distillation by difference in boiling point. Fractionation of components also takes place in column chromatography by a difference in affinity between station ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallotojaponin B
Mallotojaponin B is a dimeric phlorogucinol found in ''Mallotus oppositifolius''. The bioassay-guided fractionation of an ethanol extract of the leaves and inflorescence of ''M. oppositifolius'' collected in Madagascar led to the isolation of the two new bioactive dimeric phloroglucinols mallotojaponins B and C, together with mallotophenone. These compounds show antiproliferative and antiplasmodial ''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a verteb ... activities. References Phloroglucinols Natural phenol dimers {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallotojaponin C
Mallotojaponin C is a dimeric phlorogucinol found in ''Mallotus oppositifolius''. The bioassay-guided fractionation of an ethanol extract of the leaves and inflorescence of ''M. oppositifolius'' collected in Madagascar led to the isolation of the two new bioactive dimeric phloroglucinols mallotojaponins B and C, together with mallotophenone. These compounds show antiproliferative and antiplasmodial ''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a verteb ... activities. References Phloroglucinols Natural phenol dimers {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antiproliferative
Cytostasis (cyto – cell; stasis – stoppage) is the inhibition of cell growth and multiplication. Cytostatic refers to a cellular component or medicine that inhibits cell division. Cytostasis is an important prerequisite for structured multicellular organisms. Without regulation of cell growth and division only unorganized heaps of cells would be possible. Chemotherapy of cancer, treatment of skin diseases and treatment of infections are common use cases of cytostatic drugs. Active hygienic products generally contain cytostatic substances. Cytostatic mechanisms and drugs generally occur together with cytotoxic ones. Activators Nitric oxide – activated macrophages produce large amounts of nitric oxide (NO), which induces both cytostasis and cytotoxicity to tumor cells both ''in vitro'' and ''in vivo''. Nitric oxide-induced cytostasis targets ribonucleotide reductase by rapid and reversible inhibition. However, other studies show there could be other targets that are res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antiplasmodial
''Plasmodium'' is a genus of unicellular eukaryotes that are obligate parasites of vertebrates and insects. The life cycles of ''Plasmodium'' species involve development in a blood-feeding insect host which then injects parasites into a vertebrate host during a blood meal. Parasites grow within a vertebrate body tissue (often the liver) before entering the bloodstream to infect red blood cells. The ensuing destruction of host red blood cells can result in malaria. During this infection, some parasites are picked up by a blood-feeding insect (mosquitoes in majority cases), continuing the life cycle. ''Plasmodium'' is a member of the phylum Apicomplexa, a large group of parasitic eukaryotes. Within Apicomplexa, ''Plasmodium'' is in the order Haemosporida and family Plasmodiidae. Over 200 species of ''Plasmodium'' have been described, many of which have been subdivided into 14 subgenera based on parasite morphology and host range. Evolutionary relationships among different ''Plasm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phloroglucinols
Phloroglucinol is an organic compound with the formula C6H3(OH)3. It is a colorless solid. It is used in the synthesis of pharmaceuticals and explosives. Phloroglucinol is one of three isomeric benzenetriols. The other two isomers are hydroxyquinol (1,2,4-benzenetriol) and pyrogallol (1,2,3-benzenetriol). Phloroglucinol, and its benzenetriol isomers, are still defined as "phenols" according to the IUPAC official nomenclature rules of chemical compounds. Many such monophenolics are often termed "polyphenols" by the cosmetic and parapharmaceutical industries, which does not match the scientifically accepted definition. Synthesis and occurrence In 1855, phloroglucinol was first prepared from phloretin by the Austrian chemist Heinrich Hlasiwetz (1825–1875). A modern synthesis of involves hydrolysis of benzene-1,3,5-triamine and its derivatives. Representative is the following route from trinitrobenzene. : The synthesis is noteworthy because ordinary aniline derivatives are unreac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
