630-94-4
基本信息
去氢钩藤碱
去氢钩藤碱(标准品)
去氢钩藤碱(柯诺辛因碱)
去氢钩藤碱?, 99.9%
CORYNOXEINE 去氢钩藤碱
ERK1/2抑制剂(CORYNOXEINE)
Corynoxeine, 99.9%
corynoxeine USP/EP/BP
16,17,18,19-Tetradehydro-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester
(7R,16E,20α)-16,17,18,19-Tetradehydro-17-methoxy-2-oxocorynoxan-16-carboxylic acid methyl ester
Spiro[3H-indole-3,1'(5'H)-indolizine]-7'-aceticacid, 6'-ethenyl-1,2,2',3',6',7',8',8'a-octahydro-a-(methoxymethylene)-2-oxo-, methyl ester, (aE,1'R,6'R,7'S,8'aS)-
Spiro[3H-indole-3,1'(5'H)-indolizine]-7'-acetic acid, 6'-ethenyl-1,2,2',3',6',7',8',8'a-octahydro-α-(methoxymethylene)-2-oxo-, methyl ester, (αE,1'R,6'R,7'S,8'aS)-
(alphaE,1'R,6'R,7'S,8'aS)-6'-Ethenyl-1,2,2',3',6',7',8',8'a-octahydro-alpha-(methoxymethylene)-2-oxospiro[3H-indole-3,1'(5'H)-indolizine]-7'-acetic acid methyl ester
物理化学性质
| 外观性状 | 白色结晶粉末，可溶于甲醇、乙醇、DMSO等有机溶剂，来源于钩藤。 |
| 熔点 | 210℃ |
| 沸点 | 562.7±50.0 °C(Predicted) |
| 密度 | 1.25 |
| 酸度系数(pKa) | 13.54±0.60(Predicted) |
应用领域
常见问题列表
|
ERK1
|
ERK2
|
Corynoxeine is able to inhibit the PDGF-BB-stimulated proliferation of VSMCs through downregulation of PDGF-BB-induced ERK1/2 activation. Pre-incubation of VSMCs with Corynoxeine significantly inhibits PDGF-BB-induced extracellular signal-regulated kinase 1/2 (ERK1/2) activation, whereas Corynoxeine has no effects on mitogen-activated protein kinase (MAPK/ERK)-activating kinase 1 and 2 (MEK1/2), Akt, or phospholipase C (PLC) γ 1 activation or on PDGF receptor beta (PDGF-Rβ) phosphorylation. Corynoxeine inhibits PDGF-BB-induced ERK1/2 activation, in the same concentration range that inhibits VSMC proliferation and DNA synthesis. Corynoxeine inhibits VSMC numbers in response to PDGF-BB with 50% inhibitory concentrations (IC 50 ) of 13.7 μM. Corynoxeine inhibits DNA synthesis in response to PDGF-BB (24 h) with IC 50 of 9.2 μM. Pre-treatment of VSMCs with Corynoxeine (5-50 μM) for 24 h results in significant decreases in cell number without any cytotoxicity; the inhibition percentages are 25.0±12.5, 63.0±27.5 and 88.0±12.5% at 5, 20 and 50 μM, respectively. Corynoxeine also significantly inhibits the 50 ng/mL PDGF-BB-induced DNA synthesis of VSMCs in a concentration-dependent manner without any cytotoxicity; the inhibitions are 32.8±11.0, 51.8±8.0 and 76.9±7.4% at concentrations of 5, 20 and 50 μM, respectively.