 | |
| Names | |
|---|---|
| Preferred IUPAC name [(2R,3R)-3-(4-Hydroxy-3-methoxyphenyl)-5-methoxy-9-oxo-2,3-dihydro-9H-pyrano[2,3-f][1,4]benzodioxin-2-yl]methyl acetate | |
| Identifiers | |
3D model (JSmol) | |
| ChEMBL | |
| ChemSpider | |
PubChem CID | |
CompTox Dashboard (EPA) | |
| |
| |
| Properties | |
| C22H20O9 | |
| Molar mass | 428.393 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Durantin A is a bio-active coumarinolignoid isolated from the flowering plant Duranta repens . [1]
Vernicia fordii is a species of flowering plant in the spurge family native to southern China, Myanmar, and northern Vietnam. It is a small to medium-sized deciduous tree growing to 20 m tall, with a spreading crown. The bark is smooth and thin, and bleeds latex if cut. The leaves are alternate, simple, 4.5–25 cm long and 3.5–22 cm broad, heart-shaped or with three shallow, maple-like lobes, green above and below, red conspicuous glands at the base of the leaf, and with a 5.5–26 cm long petiole. The flowers are 2.5–3.5 cm diameter, with five pale pink to purple petals with streaks of darker red or purple in the throat; it is monoecious with individual flowers either male or female, but produced together in the inflorescences. The flowers appear before or with the leaves in loose, terminal clusters. The fruit is a hard, woody pear-shaped berry 4–6 cm long and 3–5 cm diameter, containing four or five large, oily seeds; it is green initially, becoming dull brown when ripe in autumn.
Rhaponticum repens, synonyms including Acroptilon repens and Leuzea repens, with the common name Russian knapweed, is a species of bushy rhizomatous perennial, up to 80 cm tall. Stems and leaves are finely arachnoid-tomentose becoming glabrous and green with age. The rosette leaves are oblanceolate, pinnately lobed to entire, 2–3 cm wide by 3–8 cm long. The lower cauline leaves are smaller, pinnately lobed; the upper leaves become much reduced, sessile, serrate to entire. The heads are numerous terminating the branches. Flowers are pink to purplish, the marginal ones not enlarged. The outer and middle involucral bracts are broad, striate, smooth with broadly rounded tips; the inner bracts are narrower with hairy tips. Pappus present with bristles 6–11 mm long. Fruit is a whitish, slightly ridged achene.
Trifolium repens, the white clover, is a herbaceous perennial plant in the bean family Fabaceae. It is native to Europe, including the British Isles, and central Asia and is one of the most widely cultivated types of clover. It has been widely introduced worldwide as a forage crop, and is now also common in most grassy areas of North America, Australia and New Zealand. The species includes varieties often classed as small, intermediate and large, according to height, which reflects petiole length. The term 'white clover' is applied to the species in general, 'Dutch clover' is often applied to intermediate varieties, and 'ladino clover' is applied to large varieties.
Serenoa repens, commonly known as saw palmetto, is a small palm, growing to a maximum height around 200–300 cm (6.6–9.8 ft).
The four-leaf clover is a rare variation of the common three-leaf clover that has four leaflets instead of three. According to traditional sayings, such clovers bring good luck, although it is not clear when or how this idea began. One early mention of "Fower-leafed or purple grasse" is from 1640 and simply says that it was kept in gardens because it was "good for the purples in children or others".
Elymus repens, commonly known as couch grass, is a very common perennial species of grass native to most of Europe, Asia, the Arctic, and northwest Africa. It has been brought into other mild northern climates for forage or erosion control, but is often considered a weed.
Sambal-Lei Sekpil is the world's tallest topiary. Created by Moirangthem Okendra Kumbi, it is modelled in the shape of a series of open umbrellas and spheres.
Goodyera repens, an orchid in the genus Goodyera, is called by the common name creeping lady's-tresses in Anglophone Europe and dwarf rattlesnake plantain or lesser rattlesnake plantain in North America.
Cyperus rotundus is a species of sedge (Cyperaceae) native to Africa, southern and central Europe, and southern Asia. The word cyperus derives from the Greek κύπερος, kyperos, and rotundus is from Latin, meaning "round". The earliest attested form of the word cyperus is the Mycenaean Greek 𐀓𐀞𐀫, ku-pa-ro, written in Linear B syllabic script.
Banksia repens, the creeping banksia, is a species of shrub in the plant genus Banksia. It occurs on the south coast of Western Australia from D'Entrecasteaux National Park in the west to Mount Ragged in the east.
Epigaea repens, the mayflower, trailing arbutus, or ground laurel, is a low, spreading shrub in the family Ericaceae. It is found from Newfoundland to Florida, west to Kentucky and the Northwest Territories.
Saw palmetto extract is an extract of the fruit of the saw palmetto. It is marketed as a dietary supplement that may help with benign prostatic hyperplasia, but there is no clinical evidence that it is effective for this purpose.
Duranta is a genus of flowering plants in the verbena family, Verbenaceae. It contains 17 species of shrubs and small trees that are native from southern Florida to Mexico and South America. They are commonly cultivated as hedges and ornamental plants.
Duranta erecta is a species of flowering shrub in the verbena family Verbenaceae, native from Mexico to South America and the Caribbean. It is widely cultivated as an ornamental plant in tropical and subtropical gardens throughout the world, and has become naturalized in many places. Common names include golden dewdrop, pigeon berry, and skyflower.
Coprosma repens is a species of flowering shrub or small tree of the genus Coprosma, in the family Rubiaceae, native to New Zealand. Common names include taupata, tree bedstraw, mirror bush, looking-glass bush, New Zealand laurel and shiny leaf.
Dirofilaria repens is a filarial nematode that affects dogs and other carnivores such as cats, wolves, coyotes, foxes, and sea lions, as well as muskrats. It is transmitted by mosquitoes. Although humans may become infected as aberrant hosts, the worms fail to reach adulthood while infecting a human body.
Aleuron neglectum is a moth of the family Sphingidae. It was described by Walter Rothschild and Karl Jordan in 1903.
Repenins are a group of chemical compounds which are classified as coumarinolignoids. They were first isolated from the golden dewdrop plant and characterized in 2009.
Salix repens, the creeping willow, is a small, shrubby species of willow in the family Salicaceae, growing up to 1.5 metres in height. Found amongst sand dunes and heathlands, it is a polymorphic species, with a wide range of variants. In the UK, at least, these range from small, prostrate, hairless plants at one end of the spectrum to taller, erect or ascending silky-leaved shrubs at the other. This wide variation in form has resulted in numerous synonyms.
Dinesh Chandra Chattopadhyay was a Bengali writer and editor.
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