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[ CAS No. 555-16-8 ] {[proInfo.proName]}

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Chemical Structure| 555-16-8
Chemical Structure| 555-16-8
Structure of 555-16-8 * Storage: {[proInfo.prStorage]}

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Product Citations

Product Citations      Expand+

Agarwal, Devesh S. ; Beteck, Richard M. ; Ilbeigi, Kayhan , et al. DOI: PubMed ID:

Abstract: A library of imidazo[1,2-a]pyridine-appended chalcones were synthesized and characterized using 1H NMR,13C NMR and HRMS. The synthesized analogs were screened for their antikinetoplastid activity against Trypanosoma cruzi, Trypanosoma brucei brucei, Trypanosoma brucei rhodesiense and Leishmania infantum. The analogs were also tested for their cytotoxicity activity against human lung fibroblasts and primary mouse macrophages. Among all screened derivatives, (E)-N-(4-(3-(2-chlorophenyl)acryloyl)phenyl)imidazo[1,2-a]pyridine-2-carboxamide was found to be the most active against T. cruzi and T. b. brucei exhibiting IC50 values of 8.5 and 1.35 μM, resp. Against T. b. rhodesiense, (E)-N-(4-(3-(4-bromophenyl)acryloyl)phenyl)imidazo[1,2-a]pyridine-2-carboxamide was found to be the most active with an IC50 value of 1.13 μM. All synthesized active analogs were found to be non-cytotoxic against MRC-5 and PMM with selectivity indexes of up to more than 50.

Keywords: antikinetoplastid ; ; drug likeliness properties ; ; neglected tropical diseases (NTDs) ; Trypanosoma brucei brucei ; Trypanosoma brucei rhodesiense

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; ; ; ; ; ; 1113-59-3

Jan Nowak ; Micha? Tryniszewski ; Micha? Barbasiewicz DOI:

Abstract: Heteroatom-based olefinating reagents (e.g., organic phosphonates, sulfonates, etc.) are used to transform carbonyl compounds into alkenes, and their mechanism of action involves aldol-type addition, cyclization, and fragmentation of four-membered ring intermediates. We have developed an analogous process using ethyl 1,1,1,3,3,3-hexafluoroisopropyl methylmalonate, which converts electrophilic aryl aldehydes into α-methylcinnamates in up to 70% yield. The reaction plausibly proceeds through the formation of β-lactone that spontaneously decarboxylates under the reaction conditions. The results shed light on the Knoevenagel–Doebner olefination, for which decarboxylative anti-fragmentation of aldol-type adducts is usually considered.

Keywords: olefination ; carbonyl compounds ; reaction mechanism ; lactones ; malonates ; Knoevenagel ; Doebner reaction

Purchased from AmBeed: ; ; ; ; ; ;

Jang, Mingyeong ; Lim, Taeho ; Park, Byoung Yong , et al. DOI: PubMed ID:

Abstract: In this study, we developed a metal-free and highly chemoselective method for the reduction of aromatic nitro compounds. This reduction was performed using tetrahydroxydiboron [B2(OH)4] as the reductant and 4,4'-bipyridine as the organocatalyst and could be completed within 5 min at room temperature. Under optimal conditions, nitroarenes with sensitive functional groups, such as vinyl, ethynyl, carbonyl, and halogen, were converted into the corresponding anilines with excellent selectivity while avoiding the undesirable reduction of the sensitive functional groups.

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;

Dylan Hart ; Lesetja J. Legoabe ; Omobolanle J. Jesumoroti , et al. DOI: PubMed ID:

Abstract: Herein we report the synthesis of novel compounds inspired by the antimicrobial activities of nitroazole and thiazolidin-4-one based compounds reported in the literature. Target compounds were investigated in?vitro for antitubercular, antibacterial, antifungal, and overt cell toxicity properties. All compounds exhibited potent antitubercular activity. Most compounds exhibited low micromolar activity against S. aureus and C. albicans with no overt cell toxicity against HEK-293 cells nor haemolysis against human red blood cells. Notably, compound 3b exhibited low to sub-micromolar activities against Mtb, MRSA, and C. albicans. 3b showed superior activity (0.25?μg/ml) against MRSA compared to vancomycin (1?μg/ml).

Purchased from AmBeed: ; ; ; ; ; ; ; ; ; 591-31-1 ; ; ; ; ; ; 123-08-0 ; 100-52-7 ; ; 89-98-5

Product Details of [ 555-16-8 ]

CAS No. :555-16-8 MDL No. :MFCD00007346
Formula : C7H5NO3 Boiling Point : -
Linear Structure Formula :C6H4(NO2)(CHO) InChI Key :BXRFQSNOROATLV-UHFFFAOYSA-N
M.W : 151.12 Pubchem ID :541
Synonyms :

Calculated chemistry of [ 555-16-8 ]      Expand+

Physicochemical Properties

Num. heavy atoms : 11
Num. arom. heavy atoms : 6
Fraction Csp3 : 0.0
Num. rotatable bonds : 2
Num. H-bond acceptors : 3.0
Num. H-bond donors : 0.0
Molar Refractivity : 40.65
TPSA : 62.89 ?2

Pharmacokinetics

GI absorption : High
BBB permeant : Yes
P-gp substrate : No
CYP1A2 inhibitor : Yes
CYP2C19 inhibitor : No
CYP2C9 inhibitor : No
CYP2D6 inhibitor : No
CYP3A4 inhibitor : No
Log Kp (skin permeation) : -6.11 cm/s

Lipophilicity

Log Po/w (iLOGP) : 0.99
Log Po/w (XLOGP3) : 1.56
Log Po/w (WLOGP) : 1.41
Log Po/w (MLOGP) : 0.26
Log Po/w (SILICOS-IT) : -0.18
Consensus Log Po/w : 0.81

Druglikeness

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

Water Solubility

Log S (ESOL) : -2.03
Solubility : 1.41 mg/ml ; 0.0093 mol/l
Class : Soluble
Log S (Ali) : -2.49
Solubility : 0.488 mg/ml ; 0.00323 mol/l
Class : Soluble
Log S (SILICOS-IT) : -1.71
Solubility : 2.95 mg/ml ; 0.0195 mol/l
Class : Soluble

Medicinal Chemistry

PAINS : 0.0 alert
Brenk : 3.0 alert
Leadlikeness : 1.0
Synthetic accessibility : 1.32

Safety of [ 555-16-8 ]

Signal Word:Warning Class:N/A
Precautionary Statements:P501-P273-P264-P280-P337+P313-P305+P351+P338-P302+P352-P332+P313-P362 UN#:N/A
Hazard Statements:H317-H319-H412 Packing Group:N/A
GHS Pictogram:

Application In Synthesis of [ 555-16-8 ]

* 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.

  • Upstream synthesis route of [ 555-16-8 ]
  • Downstream synthetic route of [ 555-16-8 ]

[ 555-16-8 ] Synthesis Path-Upstream   1~4

  • 1
  • [ 38622-91-2 ]
  • [ 555-16-8 ]
  • [ 1008-95-3 ]
Reference： [1] Patent: US6344465, 2002, B1, . Location in patent: Page column 17-18
  • 2
  • [ 555-16-8 ]
  • [ 1008-95-3 ]
Reference： [1] Patent: WO2006/123145, 2006, A1,
  • 3
  • [ 109-01-3 ]
  • [ 555-16-8 ]
  • [ 70261-81-3 ]
YieldReaction ConditionsOperation in experiment
90% With sodium tetrahydroborate; acetic acid In chloroform at 0 - 20℃; for 13 h; General procedure: AcOH (100percent) (140 mL, 2.44 ml) was added over 1 h to a flask containing stirred NaBH4 (20.0 g, 0.53 ml) and CHCl3 (220 mL) at 0-5 °. The resulting mixture was stirred at 0-5 ° for 1.5 h and 1-methylpiperazine (1) (28.0 ml, 0.25 ml) and a solution of methyl 4-formylbenzoate (2a) (43.4 g, 0.26 ml) in CHCl3 (60 mL) were added. The resulting mixture was stirred at 0-5 ° for 1 h and then for 12 h at rt. the mixture was treated with H2O (150 mL) and Na2CO3 until pH 8.0-9.0. The aqueous phase was extracted with EtOAc (2 .x. 100 ml) then both organic layers were combined, washed with H2O (1 .x. 100 ml), and dried over anhydrous Na2SO4. Filtration and evaporation of the solvents gave methyl 4-[(4-methylpiperazin-1-yl)methyl]benzoate (4a): yellowish oil; yield: 61.6 g, 99percent.
Reference： [1] Tetrahedron Letters, 2012, vol. 53, # 38, p. 5056 - 5058
[2] Russian Journal of Organic Chemistry, 2013, vol. 49, # 4, p. 563 - 567[3] Zh. Org. Khim., 2013, vol. 49, # 4, p. 580 - 584
[4] Journal of Medicinal Chemistry, 2017, vol. 60, # 21, p. 8801 - 8815
[5] Russian Journal of Organic Chemistry, 2011, vol. 47, # 10, p. 1556 - 1563
  • 4
  • [ 109-01-3 ]
  • [ 555-16-8 ]
  • [ 7556-55-0 ]
  • [ 619-73-8 ]
  • [ 70261-81-3 ]
Reference： [1] Chemistry of Heterocyclic Compounds, 2007, vol. 43, # 12, p. 1540 - 1543
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