利福霉素S

更新时间:2024-01-02 08:52:31

利福霉素S结构式
利福霉素S结构式
品牌特惠专场
常用名 利福霉素S 英文名 RifamycinS
CAS号 13553-79-2 分子量 695.753
密度 1.3±0.1 g/cm3 沸点 917.4±65.0 °C at 760 mmHg
分子式 C37H45NO12 熔点 179-181ºC (dec.)
MSDS N/A 闪点 508.6±34.3 °C

 利福霉素S用途


Rifamycin S 是一种醌和抗革兰氏阳性细菌 (包括 MRSA) 的抗生素。Rifamycin S 是涉及两个电子的可逆氧化还原系统的氧化形式。Rifamycin S 可以产生活性氧 (ROS) 并抑制微粒体脂质过氧化,并可用于肺结核和麻风病的研究。

 利福霉素S名称

中文名 利福霉素-S
英文名 Rifamycin S
中文别名 利福霉素 S | 利福霉素S | 利福霉素 | 利福平霉素
英文别名 更多

 利福霉素S生物活性

描述 Rifamycin S 是一种醌和抗革兰氏阳性细菌 (包括 MRSA) 的抗生素。Rifamycin S 是涉及两个电子的可逆氧化还原系统的氧化形式。Rifamycin S 可以产生活性氧 (ROS) 并抑制微粒体脂质过氧化,并可用于肺结核和麻风病的研究。
相关类别
靶点

Gram-positive bacteria[3] Reactive oxygen species (ROS)[1]

体外研究 利福霉素SV对细菌生长的抑制作用是由于细胞内的氧化还原循环产生活性氧。金属离子Mn2+、Cu2+、Co2+诱导利福霉素SV氧化为利福霉素S。最有效的金属离子是Mn2+[2]。
体内研究 大鼠肝线粒体亚颗粒在NADH和利福霉素存在下也产生羟基自由基。NADH脱氢酶(复合物I)是参与利福霉素S还原的主要成分。与NADPH相比,NADH在催化这些抗生素与大鼠肝微粒体相互作用方面几乎同样有效(利福霉素S)。利福霉素S很容易被铁(II)还原成相应的对苯二酚利福霉素SV。利福霉素S形成可检测的Fe(II)-(利福霉素S)3复合物。Fe:ATP诱导的脂质过氧化被利福霉素S完全抑制。利福霉素S可与大鼠肝微粒体相互作用,进行氧化还原循环,当存在铁络合物时,随后产生羟基自由基[1]。
参考文献

[1]. Rao DN, et al. A comparative study of the redox-cycling of a quinone (rifamycin S) and a quinonimine (rifabutin) antibiotic by rat liver microsomes. Free Radic Biol Med. 1997;22(3):439-46.

[2]. Kono Y. Oxygen Enhancement of bactericidal activity of rifamycin SV on Escherichia coli and aerobic oxidation of rifamycin SV to rifamycin S catalyzed by manganous ions: the role of superoxide. J Biochem. 1982 Jan;91(1):381-95.

[3]. Huang H, et al. Rifamycin S and its geometric isomer produced by a newly found actinomycete, Micromonospora rifamycinica. Antonie Van Leeuwenhoek. 2009 Feb;95(2):143-8.

 利福霉素S物理化学性质

密度 1.3±0.1 g/cm3
沸点 917.4±65.0 °C at 760 mmHg
熔点 179-181ºC (dec.)
分子式 C37H45NO12
分子量 695.753
闪点 508.6±34.3 °C
精确质量 695.294189
PSA 194.99000
LogP 2.87
外观性状 黄色橙色结晶粉末
蒸汽压 0.0±0.3 mmHg at 25°C
折射率 1.605
储存条件 2-8°C
计算化学

1.疏水参数计算参考值(XlogP):4.1

2.氢键供体数量:4

3.氢键受体数量:12

4.可旋转化学键数量:3

5.互变异构体数量:339

6.拓扑分子极性表面积:195

7.重原子数量:50

8.表面电荷:0

9.复杂度:1480

10.同位素原子数量:0

11.确定原子立构中心数量:9

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:3

14.不确定化学键立构中心数量:0

15.共价键单元数量:1

 利福霉素S毒性和生态

 利福霉素S安全信息

RTECS号 KD1925000
海关编码 2941903000

 利福霉素S合成线路

~92%

利福霉素S结构式

利福霉素S

13553-79-2

文献:Seong, Baik Lin; Han, Moon Hi Chemistry Letters, 1982 , p. 627 - 628

~%

利福霉素S结构式

利福霉素S

13553-79-2

文献:Journal of the Chemical Society, Chemical Communications, , p. 395 - 396

~%

利福霉素S结构式

利福霉素S

13553-79-2

文献:Journal of the Chemical Society, Chemical Communications, , p. 395 - 396

 利福霉素S海关

海关编码 2941903000

 利福霉素S文献26

更多文献
Polyketide construction via hydrohydroxyalkylation and related alcohol C-H functionalizations: reinventing the chemistry of carbonyl addition.

Nat. Prod. Rep. 31(4) , 504-13, (2014)

Despite the longstanding importance of polyketide natural products in human medicine, nearly all commercial polyketide-based drugs are prepared through fermentation or semi-synthesis. The paucity of m...

Synthesis and structure-activity relationships of novel substituted 8-amino, 8-thio, and 1,8-pyrazole congeners of antitubercular rifamycin S and rifampin.

Bioorg. Med. Chem. Lett. 21 , 6094-9, (2011)

A series of rifamycin S and rifampin analogues incorporating substituted 8-amino, 8-thio, and 1,8-pyrazole substituents has been synthesized. The compounds were made by activation of the C-8 phenol as...

Direct generation of acyclic polypropionate stereopolyads via double diastereo- and enantioselective iridium-catalyzed crotylation of 1,3-diols: beyond stepwise carbonyl addition in polyketide construction.

J. Am. Chem. Soc. 133(32) , 12795-800, (2011)

Under the conditions of transfer hydrogenation employing the cyclometalated iridium catalyst (R)-I derived from [Ir(cod)Cl](2), allyl acetate, 4-cyano-3-nitrobenzoic acid, and the chiral phosphine lig...

 利福霉素S英文别名

Rifamycin,1,4-dideoxy-1,4-dihydro-1,4-dioxo
UNII-PI53N820JV
rifomycin-S
rifamycin-S
(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17-Trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23,27,29-tetraoxo-8,30-dioxa-24-azatetracyclo[23.3.1.1.0]triaconta-1(28),2,4,9,19,21,25-heptaen-13-yl acetate
NCI 144-130
(2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-1,6,9,11-tetraoxo-1,2,6,9-tetrahydro-2,7-(epoxypentadeca[1,11,13]trienoimino)naphtho[2,1-b]furan-21-yl acetate
EINECS 236-938-4
2,7-(Epoxy[1,11,13]pentadecatrienoimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, 21-(acetyloxy)-5,17,19-trihydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, (2S,12Z,14E,16S,17S,18R,19R,20R,21S,22R,23S,24E)-
(12S,3E,5S,13E,15Z)-7t-acetoxy-15,9c,11t-trihydroxy-5r-methoxy-12,4,6t,8c,10c,12t,16-heptamethyl-2-oxa-18-aza-1(2,7)-naphtho[2,1-b]furana-cyclooctadecaphane-3,13,15-triene-11,6,9,17-tetraone
rifaximin S
O1,O4-didehydro-rifamycin
(7S,9E,11S,12R,13S,14R,15R,16R,17S,18S,19E,21Z)-2,15,17-Trihydroxy-11-methoxy-3,7,12,14,16,18,22-heptamethyl-6,23,27,29-tetraoxo-8,30-dioxa-24-azatetracyclo[23.3.1.1.0]triaconta-1(28),2,4,9 ,19,21,25-heptaen-13-yl acetate
1,4-Dideoxy-1,4-dihydro-1,4-dioxorifamycin
RifamycinS
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