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(2S,3S)-3-(4-{bis[(tert-butyl)oxycarbonyl]methyl}-phenyl)-2-{[(tert-butyl)oxycarbonyl]methyl}-pent-4-enoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

641638-41-7

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641638-41-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 641638-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,6,3 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 641638-41:
(8*6)+(7*4)+(6*1)+(5*6)+(4*3)+(3*8)+(2*4)+(1*1)=157
157 % 10 = 7
So 641638-41-7 is a valid CAS Registry Number.

641638-41-7Relevant academic research and scientific papers

Macrocyclization in the Design of Non-Phosphorus-Containing Grb2 SH2 Domain-Binding Ligands

Shi, Zhen-Dan,Wei, Chang-Qing,Lee, Kyeong,Liu, Hongpeng,Zhang, Manchao,Araki, Toshiyuki,Roberts, Lindsey R.,Worthy, Karen M.,Fisher, Robert J.,Neel, Benjamin G.,Kelley, James A.,Yang, Dajun,Burke Jr., Terrence R.

, p. 2166 - 2169 (2007/10/03)

Macrocyclization from the phosphotyrosyl (pTyr) mimetic's β-position has previously been shown to enhance Grb2 SH2 domain-binding affinity of phosphonate-based analogues. The current study examined the effects of such macrocyclization using a dicarboxymethyl-based pTyr mimetic. In extracellular assays affinity was enhanced approximately 5-fold relative to an open-chain congener. Enhancement was also observed in whole-cell assays examining blockade of Grb2 binding to the erbB-2 protein-tyrosine kinase.

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