MedKoo Cat#: 525887 | Name: NB-64
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Description:

WARNING: This product is for research use only, not for human or veterinary use.

NB-64 is a novel human immunodeficiency virus type 1 (HIV-1) entry inhibitor, interferring with the gp41 six-helix bundle formation and blocking virus fusion.

Chemical Structure

NB-64
NB-64
CAS#53242-68-5

Theoretical Analysis

MedKoo Cat#: 525887

Name: NB-64

CAS#: 53242-68-5

Chemical Formula: C11H8ClNO2

Exact Mass: 221.0244

Molecular Weight: 221.64

Elemental Analysis: C, 59.61; H, 3.64; Cl, 15.99; N, 6.32; O, 14.44

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Synonym
NB-64
IUPAC/Chemical Name
2-Chloro-5-pyrrol-1-yl-benzoic acid
InChi Key
HPAOLHCBQKYITR-UHFFFAOYSA-N
InChi Code
InChI=1S/C11H8ClNO2/c12-10-4-3-8(7-9(10)11(14)15)13-5-1-2-6-13/h1-7H,(H,14,15)
SMILES Code
O=C(O)C1=CC(N2C=CC=C2)=CC=C1Cl
Appearance
Solid powder
Purity
>98% (or refer to the Certificate of Analysis)
Shipping Condition
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility
Soluble in DMSO
Shelf Life
>2 years if stored properly
Drug Formulation
This drug may be formulated in DMSO
Stock Solution Storage
0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code
2934.99.9001
More Info
Product Data
Biological target:
NB-64 is a novel human immunodeficiency virus type 1 (HIV-1) entry inhibitor, interferring with the gp41 six-helix bundle formation and blocking virus fusion.
In vitro activity:
This study found that at this concentration two compounds, NB-2 and NB-64, significantly inhibited HIV-1 mediated syncytium formation and the six-helix bundle formation between the gp41 N peptide N36 and the C peptide C34. Both NB-2 and NB-64 are N-substituted pyrrole derivatives with molecular masses of 231 and 222 Da, respectively, and ClogP (a measure of partition of a drug in water and octanol phase) of 4.28 and 3.15, respectively (Fig. 1). Reference: Antimicrob Agents Chemother. 2004 Nov;48(11):4349-59. https://pubmed.ncbi.nlm.nih.gov/15504864/
In vivo activity:
TBD

Preparing Stock Solutions

The following data is based on the product molecular weight 221.64 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
Jiang S, Lu H, Liu S, Zhao Q, He Y, Debnath AK. N-substituted pyrrole derivatives as novel human immunodeficiency virus type 1 entry inhibitors that interfere with the gp41 six-helix bundle formation and block virus fusion. Antimicrob Agents Chemother. 2004 Nov;48(11):4349-59. doi: 10.1128/AAC.48.11.4349-4359.2004. PMID: 15504864; PMCID: PMC525433.
In vitro protocol:
Jiang S, Lu H, Liu S, Zhao Q, He Y, Debnath AK. N-substituted pyrrole derivatives as novel human immunodeficiency virus type 1 entry inhibitors that interfere with the gp41 six-helix bundle formation and block virus fusion. Antimicrob Agents Chemother. 2004 Nov;48(11):4349-59. doi: 10.1128/AAC.48.11.4349-4359.2004. PMID: 15504864; PMCID: PMC525433.
In vivo protocol:
TBD
1: Sepehri S, Saghaie L, Fassihi A. Anti-HIV-1 Activity Prediction of Novel Gp41 Inhibitors Using Structure-Based Virtual Screening and Molecular Dynamics Simulation. Mol Inform. 2017 Mar;36(3). doi: 10.1002/minf.201600060. Epub 2016 Oct 12. PubMed PMID: 27730744. 2: Sardari S, Azadmanesh K, Mahboudi F, Davood A, Vahabpour R, Zabihollahi R, Gomari H. Design of Small Molecules with HIV Fusion Inhibitory Property Based on Gp41 Interaction Assay. Avicenna J Med Biotechnol. 2013 Apr;5(2):78-86. PubMed PMID: 23799176; PubMed Central PMCID: PMC3689560. 3: Qadir MI, Malik SA. Genetic variation in the HR region of the env gene of HIV: A perspective for resistance to HIV fusion inhibitors. AIDS Res Hum Retroviruses. 2011 Jan;27(1):57-63. doi: 10.1089/aid.2010.0098. Epub 2010 Sep 28. PubMed PMID: 20874419. 4: Katritzky AR, Tala SR, Lu H, Vakulenko AV, Chen QY, Sivapackiam J, Pandya K, Jiang S, Debnath AK. Design, synthesis, and structure-activity relationship of a novel series of 2-aryl 5-(4-oxo-3-phenethyl-2-thioxothiazolidinylidenemethyl)furans as HIV-1 entry inhibitors. J Med Chem. 2009 Dec 10;52(23):7631-9. doi: 10.1021/jm900450n. PubMed PMID: 19746983; PubMed Central PMCID: PMC2802534. 5: Liu K, Lu H, Hou L, Qi Z, Teixeira C, Barbault F, Fan BT, Liu S, Jiang S, Xie L. Design, synthesis, and biological evaluation of N-carboxyphenylpyrrole derivatives as potent HIV fusion inhibitors targeting gp41. J Med Chem. 2008 Dec 25;51(24):7843-54. doi: 10.1021/jm800869t. PubMed PMID: 19053778; PubMed Central PMCID: PMC2656571. 6: Jiang S, Lu H, Liu S, Zhao Q, He Y, Debnath AK. N-substituted pyrrole derivatives as novel human immunodeficiency virus type 1 entry inhibitors that interfere with the gp41 six-helix bundle formation and block virus fusion. Antimicrob Agents Chemother. 2004 Nov;48(11):4349-59. PubMed PMID: 15504864; PubMed Central PMCID: PMC525433.