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二甲啡烷磷酸鹽
CAS No.: 36304-84-4
分子式: C18H25N.H3O4P
分子量: 353.396
備注: 中文名稱二甲啡烷磷酸鹽中文同義詞磷酸二甲啡烷雜質(zhì);二甲啡烷磷酸鹽;磷酸二甲啡烷;(9S,13S,14S)-3,17-二甲基嗎喃磷酸鹽英文名稱Dimemorfanphosphate英文同義詞DIMEMORFANPHOSPHATE;(9alpha,13alpha,14alpha)-3,17-dimethylmorphinandihydrogenphosphate;Astomin;dimemorphanphosphate;Morphinan,3,17-dimethyl-,(9α,13α,14α)-,phosphate(1:1);Dimemomin;Hofvan;DimemorfanphosphateUSP/EP/BPCAS號36304-84-4分子式C18H25N.H3O4P分子量353.396EINECS號252-958-6相關(guān)類別原料藥及中間體Mol文件36304-84-4.mol結(jié)構(gòu)式二甲啡烷磷酸鹽性質(zhì)熔點(diǎn)267-269°比旋光度D23+25.7°(c=0.5inmethanol)儲(chǔ)存條件Storeat-20°C溶解度水:20mg/mL(56.59mM);DMSO:1mg/mL(2.83mM)形態(tài)固體顏色白色至米白色二甲啡烷磷酸鹽用途與合成方法概述磷酸二甲啡烷抑制延腦咳嗽中樞,為非成癮性中樞鎮(zhèn)咳藥。效果略優(yōu)于右美沙芬,約為可待因的2倍,但毒性更低,反復(fù)應(yīng)用不會(huì)成癮,安全性較大。服用后迅速見效,且持續(xù)時(shí)間長,亦不會(huì)引起便秘,且國內(nèi)尚無廠家批準(zhǔn)上市,具有非常大的市場潛力,在國內(nèi)開發(fā)本品具有廣闊的市場前景。制備氮?dú)獗Wo(hù)下,將起始原料3-甲氧基-17-甲基右嗎喃(5.71g,20mmol)和雙(三環(huán)己基膦)二氯化鎳(0.70g,1mmol)加入100ml甲苯中攪拌溶解,升溫至65℃,滴加甲基溴化鎂(四氫呋喃溶液)(1mol/L,20ml,20mmol),滴加完畢保溫反應(yīng),TLC檢測原料反應(yīng)完畢后降至室溫,滴加少量飽和氯化銨溶液淬滅反應(yīng),加水洗滌分層,分取有機(jī)層;有機(jī)層飽和食鹽水洗滌,再經(jīng)干燥后,減壓蒸餾除去甲苯得到二甲啡烷;不經(jīng)純化直接加入25ml95%乙醇室溫?cái)嚢枞芙?,然后加?5%磷酸(2.3g,20mmol)反應(yīng)后析出白色固體,經(jīng)過濾、洗滌、干燥得到磷酸二甲啡烷5.46g,收率77.4%,純度96.2%。生物活性Dimemorfanphosphate是sigma1receptor的有效激動(dòng)劑,能夠有效止咳。靶點(diǎn)TargetValueσ1receptor(onratbrainmembranes)150nM(Ki)體外研究Dimemorfan(5-20μM)inhibitsbothfMLP-andPMA-inducedROSproductioninaconcentration-dependentmannerandisrelativelymorepotentininhibitingfMLP-inducedROSproductionwithanIC50valueof7.0μM.DimemoChemicalbookrfan(10-50μM)doesnotdisplaysignificantactivityinscavengingfreeradicalsbyxanthine/xanthineoxidasesystem.DimemorfansignificantlysuppressedMac-1upregulationbothinPMA-andfMLP-activatedgroups.Dimemorfan(10-20μM)significantlysuppressesLPS-inducedROSandNOproduction,andsuppressesLPS-inducediNOSproteinexpression,andboththepercentageofthepositivelystainedpopulationandtheMCFintensitiesofMCP-1andTNF-αinBV2cytosol.Dimemorfan(20μM)significantlyblocksthedegradationofcytosolicIκ-BαandnucleartranslocationofNF-κBp65,aswellasthetranscriptionalactivityofNF-κB.體內(nèi)研究Dimemorfan(6.25or12.5mg/kg,s.c.)significantlyattenuatestheBAYk-8644-inducedconvulsivebehaviors,inadose-relatedmanner(6.25mg/kgdimemorfan+BAYk-8644or12.5mg/kgdimemorfan+BAYk-8644versusSaline+BAYk-8644,P<0.05andP<0.01,respectively).DimemorfansignificantlyattenuatesBAYk-8644-inducedincreasesinthec-fosandc-junproteinexpressioninadose-dependentmanner.Dimemorfandoesnotsignificantlyaffectlocomotoractivityorproducesignificantcirclingbehaviorinanylocomotorpatterninmice.Dimemorfan(1and5mg/kg,i.p.)surpressestheincareaseoftheplasmalevelsofTNF-αinmice.Theinfiltrationofneutrophilsintolungandliveraswellastheproductionofoxidativestress(EBstaining)inthesetissuesinducedbyLPSismarkedlyinhibitedbythetreatmentwithdimemorfan.
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