Welcome to LookChem.com Sign In|Join Free

CAS

  • or

107781-69-1

Post Buying Request

107781-69-1 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

107781-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107781-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,8 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 107781-69:
(8*1)+(7*0)+(6*7)+(5*7)+(4*8)+(3*1)+(2*6)+(1*9)=141
141 % 10 = 1
So 107781-69-1 is a valid CAS Registry Number.

107781-69-1Relevant articles and documents

Characterization of NovP and NovN: Completion of Novobiocin Biosynthesis by Sequential Tailoring of the Noviosyl Ring

Meyers, Caren L. Freel,Oberthuer, Markus,Xu, Hui,Heide, Lutz,Kahne, Daniel,Walsh, Christopher T.

, p. 67 - 70 (2004)

Two steps forward: The glycosylated aminocoumarin antibiotic novobiocin (1) is produced by. Streptomyces spheroides and inhibits the bacterial type II topoisomerase DNA gyrase. The sugar-tailoring enzymes NovP and NovN that catalyze the final two steps in novobiocin biosynthesis were overproduced in Escherichia coli and characterized as a methyltransferase and carbamoyltransferase, respectively.

Synthesis and biological evaluation of novobiocin analogues as potential heat shock protein 90 inhibitors

Gunaherath, G.M. Kamal B.,Marron, Marilyn T.,Wijeratne, E.M. Kithsiri,Whitesell, Luke,Gunatilaka, A.A. Leslie

, p. 5118 - 5129 (2013/09/02)

Recent studies have shown that novobiocin (NB), a member of the coumermycin (CA) family of antibiotics with demonstrated DNA gyrase inhibitory activity, inhibits Heat shock protein 90 (HSP90) by binding weakly to a putative ATP-binding site within its C-terminus. To develop more potent HSP90 inhibitors that target this site and to define structure-activity relationships (SARs) for this class of compounds, we have synthesized twenty seven 3-amido-7- noviosylcoumarin analogues starting from NB and CA. These were evaluated for evidence of HSP90 inhibition using several biological assays including inhibition of cell proliferation and cell cycle arrest, induction of the heat shock response, inhibition of luciferase-refolding in vitro, and depletion of the HSP90 client protein c-erbB-2/HER-2/neu (HER2). This SAR study revealed that a substantial increase in biological activity can be achieved by introduction of an indole-2-carboxamide group in place of 4-hydroxy-isopentylbenzamido group at C-3 of NB in addition to removal/derivatization of the 4-hydroxyl group from the coumarin ring. Methylation of the 4-hydroxyl group in the coumarin moiety moderately increased biological activity as shown by compounds 11 and 13. Our most potent new analogue 19 demonstrated biological activities consistent with known HSP90-binding agents, but with greater potency than NB.

Steroid derived antibiotics

-

, (2008/06/13)

A series of novel steroid derivatives are described. The steroid derivatives are antibacterial agents. The steroid derivatives also act to sensitize bacteria to other antibiotics including erythromycin and novobiocin.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 107781-69-1