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[ CAS No. 122536-77-0 ] {[proInfo.proName]}

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Chemical Structure| 122536-77-0
Chemical Structure| 122536-77-0
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Product Citations

Product Citations

Canale, Vittorio ; Czekajewska, Joanna ; Klesiewicz, Karolina , et al. DOI: PubMed ID:

Abstract: The alarming increase in the resistance of bacteria to the currently available antibiotics necessitates the development of new effective antimicrobial agents that are active against bacterial pathogens causing major public health problems. For this purpose, our inhouse libraries were screened against a wide panel of clin. relevant Gram-pos. and Gram-neg. bacteria, based on which compound I was selected for further optimization. Synthetic efforts in a group of arylurea derivatives of aryloxy(1-phenylpropyl) alicyclic diamines, followed with an in vitro evaluation of the activity against multidrug-resistant strains identified compound 44 (1-(3-chlorophenyl)-3-(1-{3-phenyl-3-[3-(trifluoromethyl)phenoxy] propyl}piperidin-4-yl)urea). Compound 44 showed antibacterial activity against Gram-pos. bacteria including fatal drug-resistant strains i.e., Staphylococcus aureus (methicillin-resistant, MRSA; vancomycin-intermediate, VISA) and Enterococcus faecium (vancomycin-resistant, VREfm) at low concentrations (0.78-3.125 μg/mL) comparable to last resort antibiotics (i.e., vancomycin and linezolid). It is also potent against biofilm-forming S. aureus and Staphylococcus epidermidis (including linezolid-resistant, LRSE) strains, but with no activity against Gram-neg. bacteria (Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa). Compound 44 showed strong bactericidal properties against susceptible and drug-resistant Gram-pos. bacteria. Depolarization of the bacterial cytoplasmic membrane induced by compound 44 suggests a dissipation of the bacterial membrane potential as its mechanism of antibacterial action. The high antimicrobial activity of compound 44, along with its selectivity over mammalian cells (lung MCR-5 and skin BJ fibroblast cell lines) and no hemolytic properties toward horse erythrocytes, proposes arylurea derivatives of aryloxy(1-phenylpropyl) alicyclic diamines for development of novel antibacterial agents.

Keywords: Arylurea derivatives ; Antibacterial properties ; Anti-MRSA activity ; Anti-VRE activity ; Anti-LRSE activity ; Depolarization of bacterial cell membrane

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Product Details of [ 122536-77-0 ]

CAS No. :122536-77-0 MDL No. :MFCD00143191
Formula : C9H18N2O2 Boiling Point : No data available
Linear Structure Formula :- InChI Key :-
M.W : 186.25 Pubchem ID :-
Synonyms :
Chemical Name :(R)-tert-Butyl pyrrolidin-3-ylcarbamate

Calculated chemistry of [ 122536-77-0 ]      Expand+

Physicochemical Properties

Num. heavy atoms : 13
Num. arom. heavy atoms : 0
Fraction Csp3 : 0.89
Num. rotatable bonds : 4
Num. H-bond acceptors : 3.0
Num. H-bond donors : 2.0
Molar Refractivity : 54.49
TPSA : 50.36 ?2

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : No
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -6.94 cm/s

Lipophilicity

Log Po/w (iLOGP) : 2.24
Log Po/w (XLOGP3) : 0.7
Log Po/w (WLOGP) : 0.49
Log Po/w (MLOGP) : 0.56
Log Po/w (SILICOS-IT) : 0.55
Consensus Log Po/w : 0.91

Druglikeness

Lipinski : 0.0
Ghose : None
Veber : 0.0
Egan : 0.0
Muegge : 1.0
Bioavailability Score : 0.55

Water Solubility

Log S (ESOL) : -1.17
Solubility : 12.5 mg/ml ; 0.0673 mol/l
Class : Very soluble
Log S (Ali) : -1.34
Solubility : 8.61 mg/ml ; 0.0462 mol/l
Class : Very soluble
Log S (SILICOS-IT) : -1.76
Solubility : 3.21 mg/ml ; 0.0173 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 0.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 2.64

Safety of [ 122536-77-0 ]

Signal Word:Warning Class:
Precautionary Statements:P261-P305+P351+P338 UN#:
Hazard Statements:H315-H319-H335 Packing Group:
GHS Pictogram:

Application In Synthesis of [ 122536-77-0 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 122536-77-0 ]

[ 122536-77-0 ] Synthesis Path-Downstream   1~6

  • 1
  • [ 131878-23-4 ]
  • [ 122536-77-0 ]
  • 2
  • [ 60211-57-6 ]
  • [ 122536-77-0 ]
  • [ 530-62-1 ]
  • 3,5-dichlorobenzyl (R)-3-((tert-butoxycarbonyl)amino)pyrrolidine-1-carboxylate [ No CAS ]
  • 3
  • [ 100-52-7 ]
  • [ 122536-77-0 ]
  • [ 131878-23-4 ]
YieldReaction ConditionsOperation in experiment
With sodium tris(acetoxy)borohydride; In 1,2-dichloro-ethane; at 20℃; for 4.0h; To a mixture of tert-butyl (R)-pyrrolidin-3-ylcarbamate (50 mg, 0.27 mmol) in 1,2- dichloroethane (1.5 mL) was added benzaldehyde (0.055 mL, 0.54 mmol) followed by NaBH(OAc)3 (171 mg, 0.81 mmol). The mixture was stirred at room temperature for 4 h and then water was added. The mixture was extracted with ethyl acetate, washed with brine, dried over MgSO4, and concentrated in vacuo. To a mixture of crude compound in dichloromethane (3 mL) was added trifluoroacetic acid (0.5 mL). The mixture was allowed to stir overnight and extracted with UCT SPE CUBCX cartridge. The extract was concentrated in vacuo and the crude product was used for the next step without further purification
  • 4
  • [ 34584-69-5 ]
  • [ 122536-77-0 ]
  • tert-butyl (R)-(1-(6-chloro-4,5-dimethylpyridazin-3-yl)pyrrolidin-3-yl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
84% With potassium carbonate; In N,N-dimethyl-formamide; at 110℃; for 7h;Inert atmosphere; General procedure: Solid K2CO3 (2 equiv) was added to a solution of <strong>[34584-69-5]3,6-dichloro-4,5-dimethylpyridazine</strong> (1 equiv) and amine (1 equiv) in DMF(20 mL), and the resulting solution was stirred at 110 °C for 7 h.The reaction mixture was concentrated under reduced pressure and dissolved in EtOAc, washed with water, dried over magnesium sulfate, filtered, and concentrated in vacuo. The residue was purifiedby silica gel column chromatography (ethyl acetate: hexane= 4:1) to yield pure product. 5.1.1.1. tert-butyl (R)-(1-(6-chloro-4,5-dimethylpyridazin-3-yl)pyrrolidin-3-yl)carbamate (8a). Yellow solid (84percent); 1H NMR (400 MHz,CDCl3) d 4.89 (s, 1H), 4.29 (s, 1H), 3.80?3.61 (m, 2H), 3.57?3.36(m, 2H), 2.30 (s, 3H), 2.24 (s, 3H), 1.96?1.84 (m, 1H), 1.69 (s, 1H),1.43 (s, 9H); MS (ESI+): [M+H]+: 327.2
  • 5
  • [ 61929-24-6 ]
  • [ 122536-77-0 ]
  • (R)-tert-butyl (1-(1,3,4-thiadiazol-2-yl)pyrrolidin-3-yl)carbamate [ No CAS ]
  • 6
  • [ 129112-65-8 ]
  • [ 122536-77-0 ]
  • tert-butyl (1-(2-chloro-7-nitroquinazolin-4-yl)pyrrolidin-3-yl)carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
99% With N-ethyl-N,N-diisopropylamine; In dichloromethane; at 20℃; for 2.0h; To a mixture of <strong>[129112-65-8]2,4-dichloro-7-nitroquinazoline</strong> (3.0 g, 12.3 mmol) and (R)-tert-butyl pyrrolidin-3- ylcarbamate (2.3 g, 12.3 mmol) in DCM (50 mL) was added DIEA (4.76 g, 36.9 mmol) at rt and stirred for 2 hrs. The mixture was washed with water (100 mL) and concentrated. The residue was purified by silica gel chromatography (PE:EA = 1.5: 1) to afford (R)-tert-butyl (l-(2-chloro-7- nitroquinazolin-4-yl)pyrrolidin-3-yl)carbamate (4.8 g, 99%) as a yellow solid. [M+H] Calc’d for C17H20CIN5O4, 394.1; Found, 394.1
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