Cas 256949-49-2,1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione

256949-49-2

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Basic information

Product Name: 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione
Synonyms: 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione
CAS NO:256949-49-2
Molecular Formula:
Molecular Weight: 679.843
EINECS: N/A
Product Categories: N/A
Mol File: 256949-49-2.mol
Article Data: 2

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione(CAS DataBase Reference)
NIST Chemistry Reference: 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione(256949-49-2)
EPA Substance Registry System: 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-ethoxycarbonyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4(1H,3H)-dione(256949-49-2)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 256949-49-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 256949-49-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,9,4 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 256949-49:
(8*2)+(7*5)+(6*6)+(5*9)+(4*4)+(3*9)+(2*4)+(1*9)=192
192 % 10 = 2
So 256949-49-2 is a valid CAS Registry Number.

256949-49-2Upstream product

256949-49-2Downstream Products

627486-12-8 1-[(3R,5S)-2-(5-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-β-D-ribofuranosyl)-3-hydroxymethyl-1,2-isoxazolidin-5-yl]-5-methyl-1H-pyrimidine-2,4-dione

256949-49-2Relevant articles and documents

Diastereo- and enantioselective synthesis of N,O-nucleosides

Chiacchio, Ugo,Corsaro, Antonino,Iannazzo, Daniela,Piperno, Anna,Pistara, Venerando,Rescifina, Antonio,Romeo, Roberto,Sindona, Giovanni,Romeo, Giovanni

, p. 2717 - 2723 (2007/10/03)

The diastereo- and enantioselective synthesis of α- and β-3′-hydroxymethyl-N,O-nucleosides is described, based on the 1,3-dipolar cycloaddition of a N-glycosyl nitrone. Two approaches have been evaluated: the one-step procedure, which uses vinyl nucleobases, showed a better stereoselectivity towards β-nucleosides.

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