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1256385-95-1

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1256385-95-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256385-95-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,3,8 and 5 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1256385-95:
(9*1)+(8*2)+(7*5)+(6*6)+(5*3)+(4*8)+(3*5)+(2*9)+(1*5)=181
181 % 10 = 1
So 1256385-95-1 is a valid CAS Registry Number.

1256385-95-1Relevant articles and documents

Protein synthesis with conformationally constrained cyclic dipeptides

Bai, Xiaoguang,Dedkova, Larisa M.,Hecht, Sidney M.,Zhang, Chao

supporting information, (2020/10/02)

We have synthesized several conformationally constrained dipeptide analogues as possible substrates for incorporation into proteins. These have included three cyclic dipeptides formed from Boc derivatives of 2,4-diaminobutyric acid, ornithine and lysine, having 5-, 6-, and 7-membered lactam rings, respectively. These dipeptides were used to activate a suppressor tRNA transcript, the latter of which had been prepared by in vitro transcription. Using modified E. coli ribosomes described previously, these activated suppressor tRNAs enabled the incorporation of the three cyclic dipeptides into dihydrofolate reductase (DHFR) at positions 18 and 49. The suppression yields increased with increasing lactam ring size and were found to proceed in suppression yields ranging from 3.4 to 8.9% at two different protein sites for the 5-, 6- and 7-membered lactam dipeptides. The greater facility of incorporation of the 7-membered lactam prompted us to prepare two 7-membered cyclic acylhydrazides (4 and 5) by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDCI)-mediated cyclization of amino acids having selectively protected hydrazine functional groups in their side chains. In common with the lactam dipeptides, acylhydrazide dipeptides 4 and 5 could be used to activate the same suppressor tRNA transcript and to incorporate the cyclic dipeptides into DHFR. They were incorporated into the same two DHFR sites in suppression yields ranging from 8.3 to 11.2%.

ANTIVIRAL COMPOUNDS

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Page/Page column 504-505, (2010/12/17)

The invention is related to anti-viral compounds, compositions containing such compounds, and therapeutic methods that include the administration of such compounds, as well as to processes and intermediates useful for preparing such compounds.

3-AMINO-2-OXO-1-PIPERIDINEACETIC DERIVATIVES CONTAINING AN ARGININE MIMIC AS ENZYME INHIBITORS

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, (2008/06/13)

The present invention discloses peptide aldehydes having a lactam group as part of the peptide backbone and having an original mimic group such as an amidinopiperidine or amidinophengyl tail. These compounds are potent and specific inhibitors of thrombin,

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