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117251-95-3

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117251-95-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117251-95-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,5 and 1 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117251-95:
(8*1)+(7*1)+(6*7)+(5*2)+(4*5)+(3*1)+(2*9)+(1*5)=113
113 % 10 = 3
So 117251-95-3 is a valid CAS Registry Number.

117251-95-3Relevant articles and documents

First synthesis of (-)-neplanocin C

Comin, María J.,Rodriguez, Juan B.

, p. 4639 - 4649 (2007/10/03)

(-)-Neplanocin C (4), a minor component of the neplanocin family of antibiotics and a lead drug for the design of several conformationally constrained nucleosides analogues, was enantioselectively synthesized starting from D-ribono-1,4-lactone via a convergent approach in twelve steps. The proton NMR spectrum of 4 was in agreement with the corresponding natural product. Calculated coupling constants obtained from ab initio molecular modeling studies and from previously published X-ray structure of neplanocin C also corresponded to the spectroscopic data. (C) 2000 Elsevier Science Ltd.

CONVENIENT OXIDATIONS OF CARBOHYDRATE DERIVED LACTOLS AND OF ε-HYDROXY-β-KETOPHOSPHONATES

Csuk, Rene,Doerr, Petra

, p. 35 - 44 (2007/10/02)

Convenient oxidation of carbohydrate derived lactols to lactones as well as the oxidation of ε-hydroxy-β-ketophosphonates to their corresponding β,ε-diketophosphonates can be performed with the Dess-Martin periodinane in high yields.

TOTAL SYNTHESIS OF (-)-NEPLANOCIN A

Lim, Mu-ill,Marquez, Victor E.

, p. 5559 - 5562 (2007/10/02)

A total synthesis of (-)-neplanocin A has been accomplished in 15 steps starting from the readily available D-(+)-ribonic acid γ-lactone.

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