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256390-71-3

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256390-71-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 256390-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,3,9 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 256390-71:
(8*2)+(7*5)+(6*6)+(5*3)+(4*9)+(3*0)+(2*7)+(1*1)=153
153 % 10 = 3
So 256390-71-3 is a valid CAS Registry Number.

256390-71-3Relevant articles and documents

Convenient synthesis of L-proline benzyl ester

Cordova, Armando,Reed, Neal N.,Ashley, Jon A.,Janda, Kim D.

, p. 3119 - 3122 (1999)

Mesylates or tosylates of δ-hydroxy-L-norvaline esters spontaneously afford L-proline esters upon exposure to aqueous buffer in near quantitative yield. This novel reaction has led to the development of a simple route to optically active proline esters.

THIOPHOSPHATE NUCLEOSIDES FOR THE TREATMENT OF HCV

-

, (2014/09/16)

Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, the compounds are according to Formula 2001: where PD, Base, RA and RB are as provided herein. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents.

Design and synthesis of potent non-polyglutamatable quinazoline antifolate thymidylate synthase inhibitors

Marsham, Peter R.,Wardleworth, J. Michael,Boyle, F. Thomas,Hennequin, Laurent F.,Kimbell, Rosemary,Brown, Melody,Jackman, Ann L.

, p. 3809 - 3820 (2007/10/03)

The synthesis is described of a series of analogues of the potent thymidylate synthase (TS) inhibitor, N-[4-[N-[(3,4-dihydr0-2,7-dimethyl-4- oxo-6-quinazolinyl)methyl]-N-prop-2-ynylamino]2-fluorobenzoyl]-L-glutamic acid (4, ZM214888), in which the glutami

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