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5-(tert-Butyl-diphenyl-silanyloxymethyl)-3-methyl-5H-furan-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

220020-63-3

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220020-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220020-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,0,2 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220020-63:
(8*2)+(7*2)+(6*0)+(5*0)+(4*2)+(3*0)+(2*6)+(1*3)=53
53 % 10 = 3
So 220020-63-3 is a valid CAS Registry Number.

220020-63-3Relevant academic research and scientific papers

Stereoselective synthesis of 2'-amino-2',3'-dideoxynucleosides by nitrone 1,3-dipolar cycloaddition: A new efficient entry toward d4T and its 2-methyl analogue

Chiacchio, Ugo,Rescifina, Antonio,Iannazzo, Daniela,Romeo, Giovanni

, p. 28 - 36 (1999)

An efficient access to 2'-(dimethylamino)-2',3'-dideoxynucleosides is reported. The synthetic strategy relies on the 1,3-dipolar cycloaddition of C-alkoxycarbonyl nittones to allyl acetate, followed by reductive ring opening to substituted lactones, DIBALH reduction to the corresponding 3- (dimethylamino)tetrahydro-2-furanols, and coupling with silylated thymine. The removal of the dimethylamino group by Cope elimination affords a new formal synthesis of d4T and analogous unsaturated 2',3'-dideoxynucleosides.

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