145435-72-9

基本信息
(2R,3S,4R,5S,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-Cmethyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,8,10,12,14-hexamethyl-7-propyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo-hexopyranosyl]oxy]-1-oxa-7-azacyclopentadecan-15-one
物理化学性质
常见问题列表
其化学名为13-[(2,6-二脱氧-3-C-甲基-3-O-甲基-a-L-吡喃核糖基)氧]-2-乙基-3,4,10-三脱氧3,5,8,10,12,14-六甲基-7-丙基-11-[[3,4,6-三脱氧-3-(二甲氨基)-b-D-吡喃木糖基]氧]-,(2R,3S,4R,5S,8R,10R,11R,12S,13S,14R)-1-氧杂-7-氮杂环-15-单环。外观为白色至米黄色粉末,不溶于水,具有吸湿性,在高温条件下稳定,对光不敏感,重结晶后只有1种构型。加米霉素在7α位上由单一丙基取代,该特殊结构有利于其在生理pH值条件下被快速吸收,且在靶组织肺中可维持较长作用时间。

图1为加米霉素的结构式

表1为加米霉素对牛呼吸系统疾病病原菌的体外抗菌活性
有关加米霉素的兽用抗生素、理化性质、药理作用、制备方法等是由Chemicalbook的丁红编辑整理。(2016-04-25)
1.牛的应用 用于治疗敏感菌引起的牛呼吸系统疾病(BRD)。
2.羊的应用 用于控制绵羊的腐蹄病及治疗由链杆菌素引起的绵羊跛脚突发病。
MIC: 0.00012 μg/mL ( MmmSC strain B237), 0.00006μg/mL ( MmmSC strain Tan8)
The MIC values in serum are significantly lower than those in artificial medium; at an initial inoculum size of 10 6 cfu/mL, these are 64-, 8- and 64-fold lower for gamithromycin, tylosin and tilmicosin, respectively, against MmmSC strain B237 in serum compare to artificial medium. A similar pattern emerges for Tan8. Heat-inactivation of serum results in an MIC for gamithromycin that is higher than in either non-treated serum or artificial medium.
The proportion of foals that recover without the need for a change in treatment is significantly (P<0.048) higher for foals treated with Gamithromycin (GAM) (38 of 40; 95%) or AZM-RIF (39 of 40; 98%) compare to control foals (32 of 41; 78%). The clinical scores, number of abscesses and the abscess scores after 1 and 2 weeks of treatment are significantly lower for foals treated with Gamithromycin (GAM) or AZM-RIF compare to control foals. The WBC count of foals treated with Gamithromycin (GAM) is significantly higher than that of foals treated with AZM-RIF on week 3 of treatment.