P11149
目录号 : GC63134P11149 是 Galanthamine 的一个衍生物,是有效的、竞争性的、弱透过血脑屏障的、口服活性的、选择性的 AChE 抑制剂,具有中枢胆碱能活性和安全性。P11149 抑制大鼠 BChE/AChE 的 IC50 值为 1.3 μM。P11149 用于阿尔兹海默症的研究。
Cas No.:164724-79-2
Sample solution is provided at 25 µL, 10mM.
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P11149 is a competitive, BBB-penetarated weakly, orally active and selective inhibitor of AChE. P11149 exhibits an IC50 of 1.3 μM for rat BChE/AChE. P11149, a Galanthamine derivative, demonstrates central cholinergic activity, behavioral efficacy and safety. P11149 is used in the study for Alzheimer’s disease[1].
P11149 is a GAL analog that is rapidly hydrolyzed in vivo to yield the potent AChE inhibitor, 6-DMG[1].P11149 exhibits greater s.c. bioavailability than p.o. [1].Oral P11149 in mice produces Sal, Lac and tremors at doses similar to those in rats, whereas 6-DMG, P1 1012 and GAL produces Sal and Lac at doses lower than those in rats[1].P11149 exhibits T1/2(el) of 2.4 h and Cmax of 585 ng/mL in rat plasma[1].
[1]. G M Bores, et al. Pharmacological evaluation of novel Alzheimer’s disease therapeutics: acetylcholinesterase inhibitors related to galanthamine. J Pharmacol Exp Ther. 1996 May;277(2):728-38.
Cas No. | 164724-79-2 | SDF | |
分子式 | C27H34ClNO4 | 分子量 | 472.02 |
溶解度 | DMSO : 100 mg/mL (211.86 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 2.1186 mL | 10.5928 mL | 21.1855 mL |
5 mM | 0.4237 mL | 2.1186 mL | 4.2371 mL |
10 mM | 0.2119 mL | 1.0593 mL | 2.1186 mL |
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Pharmacological evaluation of novel Alzheimer's disease therapeutics: acetylcholinesterase inhibitors related to galanthamine
J Pharmacol Exp Ther 1996 May;277(2):728-38.PMID:8627552doi
Acetylcholinesterase (AChE) inhibitors from several chemical classes have been tested for the symptomatic treatment of Alzheimer's disease; however, the therapeutic success of these compounds has been limited. Recently, another AChE inhibitor, galanthamine hydrobromide (GAL), has shown increased clinical efficacy and safety. Using biochemical, behavioral and pharmacokinetic analyses, this report compares GAL with two of its analogs, 6-O-acetyl-6-O-demethylgalanthamine hydrochloride (P11012) and 6-O-demethyl-6-O[(adamantan-1-yl)-carbonyl]galanthamine hydrochloride (P11149), for their therapeutic potential. P11012 and P11149 were found to be potent, competitive and selective inhibitors of AChE, demonstrating central cholinergic activity, behavioral efficacy and safety. P11012 and P11149, though pharmacokinetic analyses, were shown to act as pro-drugs, yielding significant levels of 6-O-demethylgalanthamine. In vitro, 6-O-demethylgalanthamine was 10- to 20-fold more potent than GAL as an inhibitor of AChE, and it demonstrated greater selectivity for inhibition of AChE vs. butyrylcholinesterase. Like GAL, both P11012 and P11149 showed central cholinergic activity biochemically, by significantly inhibiting rat brain AChE; physiologically, by causing hypothermia; and behaviorally, by attenuating scopolamine-induced deficits in passive avoidance. In addition, GAL, P11012 and P11149 enhanced step-down passive avoidance, another measure of behavioral efficacy. By comparing efficacious doses with primary overt effects, P11012 and P11149 had better oral therapeutic indices than GAL. Oral pharmacokinetic analyses of GAL, P11012 and P11149 revealed differences. Although P11012 and P11149 exhibited similar area under the curve values, 191149 had slower, lower and more sustained concentration maximum levels. P11012 and GAL rapidly reached their concentration maximums, but GAL, in brain had the highest area under the curve and concentration maximum. Because of its composite profile, including duration of action, oral therapeutic index and pharmacokinetics, P11149 is considered the better therapeutic candidate for the treatment of Alzheimer's disease.