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埃博霉素A

埃博霉素A

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?埃博霉素A名称


















中文名

埃博霉素 A
英文名

(1R,5S,6S,7R,10S,14S,16S)-6,10-dihydroxy-5,7,9,9-tetramethyl-14-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-13,17-dioxabicyclo[14.1.0]heptadecane-8,12-dione
中文别名


埃博霉素A




|



西洛他唑



英文别名
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?埃博霉素A生物活性














































描述
Epothilone A 是紫杉醇和管蛋白 (tubulin) 聚合物结合的竞争性抑制剂,其 Ki 值为 0.6-1.4 μM。
相关类别





体外研究

埃坡霉素A是[3H]紫杉醇与微管蛋白聚合物结合的竞争性抑制剂。通过Hanes分析,Epothilone A的表观Ki值为1.4μM,Dixon分析的表观Ki值为0.6μM[1]。当应用于人T-24膀胱癌细胞系时,埃坡霉素A在体外具有高度细胞毒性(IC 50 =0.05μM)。基于竞争测定,埃坡霉素A与微管蛋白的结合亲和力与紫杉醇对微管蛋白的结合亲和力具有相同的数量级。从微管蛋白结合位点取出100nM(3H)紫杉醇的IC50对于紫杉醇为3.6μM,对于埃坡霉素A为2.3μM,对于patupilone为3.3μM[2]。
溶解度

体外:

DMSO:125 mg / mL(253.21 mM;需要超声波)

体内:1。逐个添加每种溶剂:10%DMSO 90%(20%SBE-β-CD在盐水中)溶解度:≥2.08mg/ mL(4.21mM);澄清溶液2.逐一加入各溶剂:10%DMSO 90%玉米油溶解度:≥2.08mg/ mL(4.21mM);澄清溶液3.逐个添加每种溶剂:10%DMSO 40%PEG300 5%吐温-80 45%盐水溶解度:≥2.08mg/ mL(4.21mM);明确解决方案

储备液

1 mM 2.0257 mL 10.1284 mL 20.2569 mL
5 mM 0.4051 mL 2.0257 mL 4.0514 mL
10 mM 0.2026 mL 1.0128 mL 2.0257 mL


存储

粉末 -20℃下 3年
在溶剂中 -80℃下 6个月
-20℃下 1个月


运输

室温;可能会有所不同
SMILES

O=C(C[C@H](O)C1(C)C)O[C@H](/C(C)=C/C2=CSC(C)=N2)C[C@]3([H])O[C@]3([H])CCC[C@H](C)[C@H](O)[C@@H](C)C1=O
参考文献

[1]. Kowalski RJ, et al. Activities of the microtubule-stabilizing agents epothilones A and B with purified tubulin and in cells resistant to paclitaxel (Taxol(R)). J Biol Chem. 1997 Jan 24;272(4):2534-41.

[2]. Cheng KL, et al. Novel microtubule-targeting agents – the epothilones. Biologics. 2008 Dec;2(4):789-811.


相关活性
小分子




诺考达唑



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一甲基澳瑞他汀E



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VcMMAE



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Mertansine(DM1化合物)



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甲磺酸艾瑞布林



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埃博霉素



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酒石酸长春瑞滨



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埃博霉素B



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McMMAF



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MMAF盐酸盐



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伊沙匹隆



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N,BETA,BETA-三甲基-L-苯基丙氨酰基-N-[(1S,2E)-3-羧基-1-(1-甲基乙基)-2-丁烯基]-N,3-二甲基-L-缬氨酰胺



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雌莫司汀磷酸钠



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安丝菌素P3



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考布他丁 A-4 磷酸二钠盐






?埃博霉素A物理化学性质





































密度 1.1±0.1 g/cm3
沸点 683.3±55.0 °C at 760 mmHg
熔点 95?C
分子式 C26H39NO6S
分子量 493.656
闪点 367.1±31.5 °C
精确质量 493.249817
PSA 137.49000
LogP 2.54
蒸汽压 0.0±2.2 mmHg at 25°C
折射率 1.532






?埃博霉素A安全信息
















危险品运输编码 NONH for all modes of transport





?埃博霉素A合成线路






















?埃博霉素A文献7

更多文献














Identifying off-target effects and hidden phenotypes of drugs in human cells.

Nat. Chem. Biol. 2 , 329-37, (2006)

We present a strategy for identifying off-target effects and hidden phenotypes of drugs by directly probing biochemical pathways that underlie therapeutic or toxic mechanisms in intact, living cells. …





Neuronal transcriptional repressor REST suppresses an Atoh7-independent program for initiating retinal ganglion cell development.

Dev. Biol. 349 , 90-9, (2011)

As neuronal progenitors differentiate into neurons, they acquire a unique set of transcription factors. The transcriptional repressor REST prevents progenitors from undergoing differentiation. Notably…





Conformational preferences of natural and C3-modified epothilones in aqueous solution.

J. Med. Chem. 51 , 1469-73, (2008)

The conformational properties of the microtubule-stabilizing agent epothilone A ( 1a) and its 3-deoxy and 3-deoxy-2,3-didehydro derivatives 2 and 3 have been investigated in aqueous solution by a comb…









?埃博霉素A英文别名



















































UNII-51E07YBX96


Epothilone A


(-)-Epothilone A


Epo A


4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (1S,3S,7S,10R,11S,12S,16R)-


[1R*,3R*(E),7R*,10S*,11R*,12R*,16S*]-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione


Epothilon A


(1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione


(1S,3S,7S,10R,11S,12S,16R)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)-1-propen-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione


4,17-Dioxabicyclo[14.1.0]heptadecane-5,9-dione, 7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-4-thiazolyl)ethenyl]-, (1R,3R,7R,10S,11R,12R,16S)-


(1R,3R,7R,10S,11R,12R,16S)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)-1-propen-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione


epithilone A


Epothilones


(1S,3S,7S,10R,11S,12S,16R)-7,11-dihydroxy-8,8,10,12-tetramethyl-3-[(1E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-4,17-dioxabicyclo[14.1.0]heptadecane-5,9-dione








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