AAI-101

Cas No.:	1001404-83-6
Chemical Name:	Unii-80vun7L00C
Synonyms:	AAI101;80VUN7L00C;(2S,3S,5R)-3-methyl-3-((3-methyl-1H-1,2,3-triazol-3-ium-1-yl)methyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide;Enmetazobactam;J3.628.087E;(2S,3S,5R)-3-Methyl-3-((3-methyltriazol-3-ium-1-yl)methyl)-4,4,7-trioxo-4^6-thia-1-azabicyclo(3.2.0)heptane-2-carboxylate;(2S,3S,5R)-3-methyl-3-[(3-methyltriazol-3-ium-1-yl)methyl]-4,4,7-trioxo-4$l^{6}-thia-1-azabicyclo[3.2.0;Unii-80vun7L00C
SMILES:	C[N+]1=NN(C[C@@](S([C@]2([H])C3)(=O)=O)(C)[C@H](C([O-])=O)N2C3=O)C=C1
Formula:	C11H14N4O5S
M.Wt:	314.3177
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:	AAI101 is an extended-spectrum β-lactamase inhibitor, against many resistant Gram-negative pathogens.
In Vivo:	In neutropenic animals, cefepime-AAI101 treatment results in reductions in bacterial density of ≥0.5 log10 CFU for 12 of the 20 strains tested and reductions of ≥1 log10 CFU for 6 of these. Increases in bacterial density are for only four strains, three of which have cefepime-AAI101 MICs of ≥64 mg/L, irrespective of the AAI101 concentration[2].
In Vitro:	AAI101 shows potent activity against specific resistance phenotypes with MIC50 and MIC90 of 0.125 mg/L and 64 mg/L[1]. Cefepime-AAI101 MICs decreases with increasing concentrations of AAI101 (over the range from 1 to 16 mg/L) for most strains, demonstrating a concentration dependence of AAI101 on restoration of the antibacterial activity of the cephalosporin[1].
Animal Administration:	In neutropenic animals, cefepime-AAI101 treatment results in reductions in bacterial density of ≥0.5 log10 CFU for 12 of the 20 strains tested and reductions of ≥1 log10 CFU for 6 of these. Increases in bacterial density are for only four strains, three of which have cefepime-AAI101 MICs of ≥64 mg/L, irrespective of the AAI101 concentration[2].
References:	[1]. Crandon JL, et al. In Vitro Activity of Cefepime/AAI101 and Comparators against Cefepime Non-susceptible Enterobacteriaceae. Pathogens. 2015 Aug 18;4(3):620-5. [2]. Crandon JL, et al. In vivo activities of simulated human doses of cefepime and cefepime-AAI101 against multidrug-resistant Gram-negative Enterobacteriaceae. Antimicrob Agents Chemother. 2015 May;59(5):2688-94.