Name | 9-(3-methylbut-2-enyloxy)-7H-furo[3,2-g]chromen-7-one |
Synonyms | imperatorin IMPERATORIN 8-isopentenyloxypsoralene 9-(3-methylbut-2-enyloxy)-7H-furo[3,2-g]chromen-7-one 9-[(3-methylbut-2-en-1-yl)oxy]-7H-furo[3,2-g]chromen-7-one 2-g)(1)benzopyran-7-one,9-((3-methyl-2-butenyl)oxy)-7h-furo( 9-[(3-methyl-2-butenyl)oxy]-7h-furo[3,2-g][1]benzopyran-7-one 9-((3-methyl-2-butenyl)oxy)-7h-furo(3,2-g)(1)benzopyran-7-one 6-hydroxy-7-((3-methyl-2-butenyl)oxy)-5-benzofuranacrylicacidelta-lacto 6-hydroxy-7-(3-methyl-2-butenyloxy)-5-benzofuranacrylicacidomega-lactone 6-hydroxy-7-((3-methyl-2-butenyl)oxy)-5-benzofuranacrylicacidelta-lactone |
CAS | 482-44-0 |
EINECS | 207-581-1 |
InChI | InChI=1/C16H14O4/c1-10(2)5-7-19-16-14-12(6-8-18-14)9-11-3-4-13(17)20-15(11)16/h3-6,8-9H,7H2,1-2H3 |
InChIKey | OLOOJGVNMBJLLR-UHFFFAOYSA-N |
Molecular Formula | C16H14O4 |
Molar Mass | 270.28 |
Density | 1.1311 (rough estimate) |
Melting Point | 98-100°C |
Boling Point | 333.4°C (rough estimate) |
Flash Point | 224.9°C |
Solubility | DMSO : 50 mg/mL (184.99 mM; Need ultrasonic);H2O : < 0.1 mg/mL (insoluble) |
Vapor Presure | 3.13E-08mmHg at 25°C |
Appearance | White flake crystal |
Color | off-white to light brown |
Maximum wavelength(λmax) | ['301nm(MeOH)(lit.)'] |
Merck | 14,4925 |
Storage Condition | -20°C |
Refractive Index | 1.4350 (estimate) |
MDL | MFCD00016881 |
Physical and Chemical Properties | It is from the stem of Raeusch in the family flaviaceae, |
In vitro study | Imperatorin is a plant secondary metabolite belonging to the coumarins-specifically the furanocoumarins. Imperatorin enhances the GABA-induced chloride ion current (I GABA ) through the α 1 β 2 γ 2S receptors. Imperatorin potentiates I GABA at 100 μmol by 50.5±16.3 % and at 300 μmol by 109.8±37.7 %, respectively. Imperatorin, together with Phellopterin, found in the roots of A. dahurica, inhibit [ 3 H]diazepam binding to the benzodiazepine site of the rat brain GABA A receptor in vitro with an IC 50 of 12.3 μmol for Imperatorin and 400 nmol for Phellopterin. Imperatorin, in a concentration ranging from 3.5 to 14 mmol, significantly and irreversibly inhibits GABA-T in a time-dependent and concentration-dependent manner, by irreversibly binding with the active site of GABA-T.Imperatorin is a reversible acetylcholinesterase (AChE) inhibitor, and acts in dose-dependent manner. The AChE and BChE inhibitory activities of Imperatorin and a crude extract from the fruits of Angelica archangelica L. is tested by the spectrophotometric method at concentrations of 12.5, 25, 50, and 100 μg/mL. Imperatorin displays low inhibition towards AChE (13.75-46.11 %), whereas it has remarkable inhibitory effect against BChE (37.46-83.98 %). Imperatorin shows selectivity toward BChE rather than AChE, with an IC 50 for BChE of 31.4 μmol. Imperatorin, together with (+)-Byakangelicol, are found to be the most effective BACE-1 inhibitors, with IC 50 s of 91.8 and 104.9 μmol, respectively. Imperatorin (IC 50 =9.2 μmol) is also effective as an inhibitor of NO synthesis. Imperatorin is a weak agonist of TRPV1, a channel implicated in detecting several noxious stimuli, exhibiting EC 50 of 12.6±3.2 μM. |
In vivo study | At doses of 10 and 20 mg/kg and 30 min after injection, Imperatorin shows an anxiolytic effect and improved different stages of memory and learning processes-both acquisition and consolidation. It is also shown that acute administration Imperatorin at doses of 10 and 20 mg/kg reduced the anxiogenic effect of nicotine (0.1 mg/kg, subcutaneous, s.c.). At 30 and 40 mg/kg, i.p. Imperatorin significantly potentiates the anticonvulsant activity of carbamazepine against maximal electroshock-induced seizures expressed by lowering the ED 50 from 10.8 to 6.8 mg/kg (by 34 %) and 6 mg/kg (by 42 %), respectively. Moreover, Imperatorin at 30 mg/kg and carbamazepine at 6.8 mg/kg shows increases the total brain concentration of carbamazepine from 1.260 to 2.328 μg/mL (by 85%), which may be caused by modifying the blood-barrier permeability or acting like an inhibitor of multi-drug resistance proteins. Imperatorin, a naturally occurring furanocoumarin, inactivates gamma-aminobutyric acid transaminase and inhibits acetylcholinesterase activity. Imperatorin administered acutely at the doses of 5 and 10 mg/kg prior to the injection of scopolamine (1 mg/kg) improves memory acquisition and consolidation impaired by scopolamine. Furthermore, repeatable (7 days, twice daily) administration of the highest dose of Imperatorin (10 mg/kg) significantly attenuates the effects of scopolamine on memory acquisition, whereas the doses of 5 and 10 mg/kg of this furanocoumarin are effective when memory consolidation is measured . |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
RTECS | LV1575000 |
HS Code | 29419090 |
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