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108656-27-5

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108656-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 108656-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,6,5 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 108656-27:
(8*1)+(7*0)+(6*8)+(5*6)+(4*5)+(3*6)+(2*2)+(1*7)=135
135 % 10 = 5
So 108656-27-5 is a valid CAS Registry Number.

108656-27-5Relevant articles and documents

2-OXAZOLIDINONES AS REGIOSELECTIVE PROTECTION OF β-AMINO ALCOHOLS IN THE SYNTHESIS OF 2-AMINO-1-ARYL-3-FLUORO-1-PROPANOLS

Jommi, Giancarlo,Pagliarin, Roberto,Tavecchia, Paolo,Chiarino, Dario,Fantucci, Mario

, p. 485 - 490 (2007/10/02)

The regioselective conversion of threo-2-ethoxycarbonylamino-1--1,3-propanediol, 4, into 4-hydroxymethyl-5--2-oxazolidinone, 8, is described as well as the use of this protection procedure in the synthesis of the fluoro analogue, 2, of thiamphenicol, 1.Methods of hydrolysis of the oxazolidinone ring are revisited for compound 11; new procedures via N-acylated intermediates have been investigated and their application is reported.

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