241479-67-4
基本信息
艾沙康唑
愛莎康唑
艾莎康唑
艾沙康挫
伊沙康康唑
硫酸艾沙康唑
愛莎康唑雜質41
艾沙康唑 100G
艾沙康唑中間體M9
RO 0094815
Isaconazole
Isavucozole
Isavuconazole
Isavuconazonium
NaMe:Isavuconazole
Isavuconazole(BAL-4815
2R,3R)-3-[4-(4-Cyanophenyl)thiazol-2-yl]-2-(2,5- difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butan-2-ol
4-(2-((2R,3R)-3-(2,5-difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
物理化學性質
常見問題列表
艾沙康唑硫酸鹽進入體內后被血漿酯酶迅速轉化為活性代謝物艾沙康唑。與其他的唑類抗真菌藥相似,艾沙康唑通過抑制麥角甾醇生物合成從而破壞真菌細胞膜的形成。艾沙康唑與真菌CYP51 基因編碼的細胞色素P450 羊毛甾醇14-α-去甲基酶結合,抑制14-α-去甲基酶的活性,阻礙麥角甾醇合成,而累積的毒性甲基化甾醇影響真菌細胞膜的結構穩(wěn)定性和完整性,并且改變其功能,最終導致真菌死亡。艾沙康唑結構式分子中的側鏈與真菌CYP51 蛋白有較高的親合力,促使其具有較廣的抗真菌譜,并且包括對其他唑類抗真菌藥耐受的真菌。
一種艾沙康唑的制備方法,它包括以:下步驟:
(a)向反應釜中依次加入二氟苯基乙酰氯、三氮唑、CuI、碳酸鉀和N,N-二甲基甲酰胺,在80~100℃攪拌反應后提純得第一產(chǎn)物
(b)向反應容器中加入丙腈、催化劑、第二有機溶劑,降溫至-20~-5℃,滴加含有第一產(chǎn)物的N,N-二甲基乙酰胺,反應提純得第二產(chǎn)物所述催化劑為C-9伯胺金雞納堿和銅色樹堿組成的混合物;
(c)將第二產(chǎn)物加入另一反應容器中,加入二硫代磷酸二乙酯、水和異丙醇混合溶劑,加熱至80~90℃,攪拌反應后提純得第三產(chǎn)物
(d)將第三產(chǎn)物與2-溴-4’-氰基苯乙酮、95乙醇混合后,在60~70℃攪拌反應后提 純即可。優(yōu)化地,所述催化劑為C-9伯胺金雞納堿和銅色樹堿按摩爾比為1:1組成的混合物
Isavuconazole (BAL-4815) shows good activity against all Candida spp., with active MIC 50 of 0.004 mg/L. The MIC 50 s/MIC 90 s range from 0.002/0.004 mg/L for C. albicans to 0.25/0.5 mg/L for C. glabrata . Isavuconazole has potent in vitro activity against most common Aspergillus species, Purpureocillium lilacinum , and Scedosporium apiospermum . Isavuconazole shows potent activity against molds, yeasts, and dimorphic fungi. Rhizopus isolates have MIC values to isavuconazole as low as 0.12 μg/mL with others as high as 32 μg/mL. In the study of pharmacokinetics and pharmacodynamics of isavuconazole against the GFP transformant, F/11628, NIH 4215, and F/16216, the modal MICs of isavuconazole are 1, 8, 1, 4 mg/L, respectively.