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1408058-29-6

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1408058-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1408058-29-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,8,0,5 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1408058-29:
(9*1)+(8*4)+(7*0)+(6*8)+(5*0)+(4*5)+(3*8)+(2*2)+(1*9)=146
146 % 10 = 6
So 1408058-29-6 is a valid CAS Registry Number.

1408058-29-6Relevant articles and documents

A new and efficient asymmetric synthesis of oseltamivir phosphate(Tamiflu) from D-mannose

Chuanopparat, Nutthawat,Kongkathip, Ngampong,Kongkathip, Boonsong

, p. 6209 - 6211,3 (2012/12/11)

Oseltamivir phosphate (Tamiflu) was synthesized from D-mannose through a short and practical synthetic route. A unique feature of the route is that the bulky 3-pentyloxy group and adjacent acetamide of Tamiflu were introduced at an early stage of the synthesis by copper-catalyzed regioselective ringopening of the 2,3-pentylidene ketal of D-lyxofuranoside. The D-lyxofuranoside ethylphosphonate precursor was then cyclized via an intramolecular Horner-Wadsworth-Emmons reaction to furnish the Tamiflu skeleton.

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