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ChemicalBook--->CAS DataBase List--->114248-23-6

114248-23-6

114248-23-6 Structure

114248-23-6 Structure
IdentificationBack Directory
[Name]

2',2'-DIFLUORO-2'-DEOXYURIDINE
[CAS]

114248-23-6
[Synonyms]

Gemcitabine impurity C
Gemcitabine Metabolite
2Deoxy-22difluorouridine
2',2'-Difluorodeoxyuridine
2',2'-DIFLUORO-2'-DEOXYURIDINE
Uridine,2'-deoxy-2',2'-difluoro-
2'-Deoxy-2',2'-difluoro-D-uridine
2'-Deoxy-2',2'-difluorouridine ,97%
1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione
[Molecular Formula]

C9H10F2N2O5
[MDL Number]

MFCD00871912
[MOL File]

114248-23-6.mol
[Molecular Weight]

264.18
Chemical PropertiesBack Directory
[Appearance]

Off-White Solid
[Melting point ]

147-149°C
[density ]

1.69±0.1 g/cm3(Predicted)
[storage temp. ]

-20°C Freezer
[solubility ]

Methanol (Slightly), Water (Very Slightly, Heated)
[form ]

Solid
[pka]

9.39±0.10(Predicted)
[color ]

White to Off-White
[InChI]

InChI=1S/C9H10F2N2O5/c10-9(11)6(16)4(3-14)18-7(9)13-2-1-5(15)12-8(13)17/h1-2,4,6-7,14,16H,3H2,(H,12,15,17)/t4-,6-,7-/m1/s1
[InChIKey]

FIRDBEQIJQERSE-PRMYIZFSSA-N
[SMILES]

OC[C@H]1O[C@@H](N2C=CC(=O)NC2=O)[C@](F)(F)[C@@H]1O
Hazard InformationBack Directory
[Chemical Properties]

Off-White Solid
[Uses]

A metabolite of Gemcitabine (G305000) in human plasma.
[Uses]

A metabolite product of Gemcitabine
[Definition]

ChEBI: 2',2'-Difluorodeoxyuridine is a pyrimidine 2'-deoxyribonucleoside.
[Synthesis]

Gemcitabine hydrochloride

122111-03-9

2',2'-DIFLUORO-2'-DEOXYURIDINE

114248-23-6

General procedure for the synthesis of 1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one hydrochloride from 4-amino-1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2,4(1H,3H)-dione As follows: 4-amino-1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidin-2(1H)-one hydrochloride (5 g, 16.7 mmol, 1.0 eq.) was dissolved in 2N aqueous acetic acid (350 ml), sodium nitrite (16.7 g, 14.5 eq.) was added slowly and the reaction mixture The reaction mixture was allowed to stand at room temperature for 48 hours. Subsequently, the pH of the reaction mixture was adjusted to 6-7 with 2N aqueous sodium hydroxide and concentrated under reduced pressure. To the concentrated residue, a solvent mixture of methanol/ethyl acetate (1:5, 360 ml) was added and the insoluble salt was removed by filtration. This operation was repeated several times to remove the salt completely, and finally the filtrate was concentrated under reduced pressure to give 4.22 g of the target product 1-((2R,4R,5R)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione as a light brown transparent oil in 95% yield.

[References]

[1] Patent: KR101794970, 2017, B1. Location in patent: Paragraph 0095-0097
[2] Patent: US2013/165400, 2013, A1
[3] Patent: WO2014/209979, 2014, A1
[4] Journal of Medicinal Chemistry, 2015, vol. 58, # 4, p. 1862 - 1878
[5] Patent: US2015/105341, 2015, A1
Safety DataBack Directory
[HS Code ]

29389090
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