antibacterial action

Sulfisoxazole acetyl (Gantrisin) 是 Sulfisoxazole 的一种衍生物，是口服有效的二氢蝶酸合酶抑制剂。Sulfisoxazole acetyl 显示出抗菌作用。

Antimicrobial agent-22 (THI 6c) 是一种抗菌剂，具有低细胞毒性、抗生物膜活性和快速杀菌的作用。

Chloroxine (Capitrol) 是重要的 8-羟基喹啉衍生物之一，有抗细菌，抗真菌，抗原生动物和抗阿米巴虫活性，可研究肠道阿米巴病，还可研究头皮屑和头皮脂溢性皮炎。

Trimethoprim (NSC-106568) 是抑菌抗生素，也是具有口服活性的二氢叶酸还原酶抑制剂。它对多种革兰氏阳性和革兰氏阴性需氧细菌具有活性，可用于尿路感染，肺孢子菌肺炎和志贺氏菌病的研究。

Ethionamide (2-ethylthioisonicotinamide) 是一种抗结核抗生素。

Ciclopirox (HOE296b) 是一种合成的抗真菌剂，可研究浅表真菌病。

Erythromycin estolate是一种半合成的红霉素衍生物，具有良好的口服吸收性和生物利用度耐酸性。作为大环内酯类抗生素，依托红霉素通过抑制细菌蛋白质合成发挥抗菌作用，主要用于治疗由敏感细菌引起的呼吸道、皮肤和软组织感染研究。Erythromycin estolate可能引起肝损伤，包括轻度的胆汁淤积性肝炎、黄疸和胆管缺乏。

Levofloxacin Hydrochloride Impurity A 是一种喹诺酮类药物，具有广谱抗菌作用。

Tazobactam (YTR-830H) acid 是一种具有抗菌活性的β-内酰胺酶抑制剂。

AVX 13616 shows the potent in vivo antibacterial activity of Avexa’s lead antibacterial candidate; particularly against drug-resistant Staphylococcus pathogens. IC50 value: 2-4 ug/ml (MICs) Target: antibacterial agent AVX13616 was as active as mupirocin i

Antibacterialagent 244 是一种口服活性广谱抗菌化合物，特别有效针对革兰氏阳性菌，其最小抑菌浓度(MIC)范围为1-4 μg/mL。该化合物的溶血毒性较低，半致死浓度(HC50)为111.6 μg/mL。其抗菌机制主要通过破坏细菌的膜电位和增加膜的通透性，进而导致DNA及蛋白质的泄漏，引发细菌死亡。Antibacterialagent 244 在革兰氏阳性菌感染的研究领域具有应用潜力。

Cefamandole是一种广谱的头孢菌素类抗生素,对Bacillus subtilis和Escherichia coli等具有抗菌活性。

Antibacterialagent 119 (Compound 21 g) 是一种抗耐Methicillin金黄色葡萄球菌的候选抗菌剂，其对测试菌株的MIC小于1 μg/mL。该化合物能够诱导ROS产生，并作用于细菌细胞膜，使其破裂。Antibacterialagent 119 显示出强效抗菌活性、低细胞毒性、快速杀菌能力以及良好的体内抗菌效果。

KSK-104 显示出对结核分枝杆菌 (Mycobacterium tuberculosis) 的显著抗菌活性 (MIC=0.78 μM)。其主要作用机制涉及吡哆醛 5'-磷酸 (PLP) 的合成和回收途径，影响依赖 PLP 的酶和氧化应激网络。作为抗结核药物的新型候选分子，KSK-104 有望用于对耐药结核分枝杆菌的研究与新药开发。

Anti-MRSA agent 31 (Compound 6) 是一种用于抗耐甲氧西林金黄色葡萄球菌 (MRSA) 的化合物，其最低抑菌浓度 (MIC) 为 97 μg/mL，最低杀菌浓度 (MBC) 为 781.25 μg/mL。该化合物表现出强效的抗菌活性，并显著抑制结合蛋白 2a (PBP2a)。

Antibiofilm agent-17 是一种双效生物膜抑制剂，针对铜绿假单胞菌，表现出IC50= 0.33 μM的有效性。通过减少由群体感应系统调控的毒力产生和降低铁离子获取能力，Antibiofilm agent-17 可抑制生物膜的形成。在小鼠伤口感染模型中，该化合物显示了抗菌的协同作用，并可用于铜绿假单胞菌感染的研究。

Ro 24-4383 is a carbamate-linked dual-action antibacterial agent.

Ro-23-9424 is a dual-action cephalosporin with a fleroxacin esterified at the 3' position and aminothiazolylmethoxyimino-type side chain at the 7 position. Ro-23-9424 has broad and potent antibacterial activity in vitro and in vivo.

Flumequine-13C3is intended for use as an internal standard for the quantification of flumequine by GC- or LC-MS. Flumequine is a fluoroquinolone antibiotic.1It is active againstS. aureus, S. pyogenes, B. subtilis, E. coli, P. aeruginosa, S. faecalis, andK. pneumoniae(MICs = 1-100 μg/ml). Flumequine is also active against field isolates of B. hyodysenteriae (MICs = 6.25-200 μg/ml).2It inhibits DNA gyrase, disrupting supercoiling of bacterial DNA to block transcription and replication.3In vivo, flumequine (50 mg/kg) increases survival in rat models ofP. vulgaris-induced urinary tract infection andP. mirabilis-induced prostatitis.1Formulations containing flumequine have been used in the treatment of urinary tract infections in veterinary medicine. 1.Rohlfing, S.R., Gerster, J.R., and Kvam, D.C.Bioevaluation of the antibacterial flumequine for urinary tract useAntimicrob. Agents Chemother.10(1)20-24(1976) 2.Aller-Morán, L.M., Martínez-Lobo, F.J., Rubio, P., et al.Evaluation of the in vitro activity of flumequine against field isolates of Brachyspira hyodysenteriaeRes. Vet. Sci.10351-53(2015) 3.Smith, J.T.The mode of action of 4-quinolones and possible mechanisms of resistanceJ. Antimicrob. Chemother.18 (Suppl. D)21-29(1986)

3-O-Methylgalangin (GALANGIN-3-METHYLETHER) 是一种来源于高良姜根茎的天然黄酮，具有抗菌活性，抑制胰腺脂肪酶。

Antibacterial agent 94 (compound 5b) is a highly effective antibacterial agent that demonstrates strong activity against various bacterial strains. Notably, Antibacterial Agent 94 is capable of eradicating MRSA persisters, highlighting its potential as a therapeutic solution. Its mechanism of action involves interference with the bacterial membrane and disruption of the phosphatidylglycerol (PG) synthesis pathway [1].

Antibacterial agent 110 (Compound 4e) 是一种有效的抗细菌 (antibacterial) 剂，作用于 P. aeruginosa (MIC: 1 μg/ml)。Antibacterial agent 110 可以使代谢停滞和细胞内氧化应激，并阻碍 DNA 复制。Antibacterial agent 110 可以破坏细胞膜，具有良好的抗菌膜作用。

Parconazole Free Base is used in veterinary as an oral fungicide with a broad-spectrum activity against dermatophytes, yeasts, and others fungi. This compound does not have any antibacterial effect. The mechanism of action involves inhibition of the fungal cytochrome P450 dependent 14alpha-dimethylation of lanosterol to ergosterol.

Ethionamide HCl is the salt form of Ethionamide, a second-line antitubercular agent that inhibits mycolic acid synthesis. Ethionamide is a nicotinamide derivative, with antibacterial activity, used to treat tuberculosis. Although the exact mechanism of action of ethionamide is unknown, it may inhibit the synthesis of mycolic acid, a saturated fatty acid found in the bacterial cell wall, thereby inhibiting bacterial cell wall synthesis. This eventually leads to bacterial cell wall disruption and cell lysis. Ethionamide may be bacteriostatic or bactericidal in action, depending on the concentration of the drug at the site of infection and the susceptibility of the organism involved. It binds with NAD+ to form an adduct.