70253-62-2
Chemical Structure
Neospiramycin I
- CAS No.: 70253-62-2
- Formula:C36H62N2O11
- Molecular Weight:698.88
IUPAC Name: 2-((4R,5S,6S,7R,9R,10R,11E,13E,16R)-6-(((2S,3R,4S,5S,6R)-4-(dimethylamino)-3,5-dihydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-10-(((2R,5S,6R)-5-(dimethylamino)-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4-hydroxy-5-methoxy-9,16-dimethyl-2-oxooxacyclohexadeca-11,13-dien-7-yl)acetaldehyde
InChIKey: SUBWVHAACKTENX-XLGVTROISA-N
SMILES: O=CC[C@@H](C[C@H]([C@H](/C=C/C=C/C[C@H](OC(C[C@H]([C@@H]1OC)O)=O)C)O[C@@H]2O[C@@H]([C@H](CC2)N(C)C)C)C)[C@@H]1O[C@H]3[C@@H]([C@H]([C@@H]([C@H](O3)C)O)N(C)C)O
Biological Activity: Neospiramycin I is a macrolide antibiotic and a derivative of Spiramycin I (HY-N7141). Neospiramycin I is effective against the macrolide-sensitive KB210 strain of S. aureus, but ineffective against the macrolide-resistant KB224 strain, with minimum inhibitory concentrations (MIC) of 3.12 and greater than 100 µg/mL, respectively; it is also effective against B. cereus, B. subtilis, M. luteus, E. coli, and K. pneumoniae, with respective MIC values of 1.56, 3.12, 3.12, 0.2, 50, and 12.5 µg/mL. Neospiramycin I binds to the ribosomes of E. coli, with an inhibitory concentration 50 (IC50) of 1.2 µM. It protects mice from death in a type III S. pneumoniae infection model, with an effective dose 50 (ED50) of 399.8 mg/kg[1][2].
| Cat. No. | Product Name | Purity | Description | Pricing | |||||||||||||||||||
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Neospiramycin I | 96.27% | Neospiramycin I is a macrolide antibiotic and a derivative of Spiramycin I (HY-N7141). Neospiramycin I is effective against the macrolide-sensitive KB210 strain of S. aureus, but ineffective against the macrolide-resistant KB224 strain, with minimum inhibitory concentrations (MIC) of 3.12 and greater than 100 µg/mL, respectively; it is also effective against B. cereus, B. subtilis, M. luteus, E. coli, and K. pneumoniae, with respective MIC values of 1.56, 3.12, 3.12, 0.2, 50, and 12.5 µg/mL. Neospiramycin I binds to the ribosomes of E. coli, with an inhibitory concentration 50 (IC50) of 1.2 µM. It protects mice from death in a type III S. pneumoniae infection model, with an effective dose 50 (ED50) of 399.8 mg/kg. | ||||||||||||||||||||
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Neo Spiramycin I-d3 | Neo Spiramycin I-d3 is the deuterium labeled Neo Spiramycin I (HY-143623). Neo Spiramycin I (NSPI) is the active metabolite of Spiramycin (SPI) with antimicrobial activity. Neo Spiramycin is widely used in veterinary medicine. | |||||||||||||||||||||
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References
- [1]. Sano H, et al. Chemical modification of spiramycins. II. Synthesis and antimicrobial activity of 4'-deoxy derivatives of neospiramycin I and their 12-(Z)-isomers. J Antibiot (Tokyo). 1984 Jul;37(7):738-49. [Content Brief]
- [2]. Sano H, et al. Chemical modification of spiramycins. I. Synthesis of the acetal derivatives of neospiramycin I. J Antibiot (Tokyo). 1983 Oct;36(10):1336-44. [Content Brief]
