UK 1

Catalog No. Size PriceQuantity
M22533-C Contact for quotation $100Unavailable


UK 1, an unusual bis-benzoxazole metabolite isolated from Streptomyces sp. 517-02, is an inhibitor of topoisomerase II (Topo II) and hepatitis C viral replication. It is an antifungal and an antibiotic, and displays a wide spectrum of potent anticancer activities against lymphoma, leukemia, and certain solid tumor-derived cell lines with IC50 values as low as 20 nM. However, UK 1 is devoid of antimicrobial activity and is inactive against Pseudomonas aeruginosa and Staphylococcus aureus, a methicillin-resistant strain of S. aureus. Additionally, UK-1 can bind a wide variety of di- and tri-valent metal ions, particularly Mg2+ ions, and form complexes with DNA in the presence of Mg2+ ions. Topo II are ATP-dependent enzymes, which can simultaneously cut both strands of the DNA helix to manage DNA supercoils and tangles. In vitro: UK 1 strongly blocked the growth of human epitheloid carcinoma HeLa, mouse melanoma B16, mouse leukemia P388 cells with ED50 values of 1.22 μg/ml, 1.17 μg/ml, and 0.11 μg/ml, respectively. UK 1 did not display any growth inhibitory activity against bacteria, fungi and yeasts up to 100 μg/ml . In vivo: Up to now, in vivo study of UK 1 is still in the development stage.

Product information

CAS Number: 151271-53-3

Molecular Weight: 386.36

Formula: C22H14N2O5

Chemical Name: methyl 2-[2-(2-hydroxyphenyl)-1,3-benzoxazol-4-yl]-1,3-benzoxazole-4-carboxylate

Smiles: COC(=O)C1=CC=CC2OC(=NC=21)C1=CC=CC2OC(=NC=21)C1=CC=CC=C1O


InChi: InChI=1S/C22H14N2O5/c1-27-22(26)14-8-5-11-17-19(14)24-21(29-17)13-7-4-10-16-18(13)23-20(28-16)12-6-2-3-9-15(12)25/h2-11,25H,1H3

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

Products are for research use only. Not for human use.

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