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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1885525Generated: November 2, 2026

Ethanol → 2,3'-Anhydrothymidine

https://huagongshe.com/reaction/1885525

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantThymidineHCID 5789—
Reactant2-Chloro-N,N-diethyl-1,1,2-trifluoroethan-1-amineHCID 136184—
SolventDimethylformamideHCID 6228—
Product2,3'-AnhydrothymidineHCID 6915752—

Reaction Conditions

Temperature70 °C

Reaction Steps

Thymidine (85.4 g: 0.353 mol) was dissolved in 500 ml dry DMF and added to N-(2-chloro-1,1,2-trifluoroethyl) diethylamine (100.3 g: 0.529 mol) (prepared according to the method of D. E. Ayer, J. Med. Chem. 6, 608 (1963). This solution was heated at 70° C. for 30 minutes them poured into 950 ml ethanol (EtOH) with vigorous stirring. The product precipitated from this solution was filtered. The EtOH supernatent was refrigerated then filtered to yield a total of 47.75 g (0.213 mol. 60.3%) mp=228°-230° c.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05145840
Source datasetuspto-grants-1992_09
ORD IDord-f610bcba676a46c28c9947766a7a4977
Source noteuspto-grants-1992_09