75500-02-6Relevant academic research and scientific papers
Improved chemical syntheses of 5,6-dihydro-5-fluorouracil
LaFrate, Andrew L.,Katzenellenbogen, John A.
, p. 8573 - 8576 (2008/02/13)
(Chemical Equation Presented) 5,6-Dihydro-5-fluorouracil (5-DHFU) is a metabolite of the chemotherapy drug 5-fluorouracil (5-FU) of importance for biological studies. 5-DHFU has been prepared by enzymatic reduction of 5-FU and in very low yield by hydrogenation of 5-FU; however, a practical chemical synthesis is not available. Facile racemic syntheses of 5-DHFU from 5-FU or uracil, using p-methoxybenzyl protecting groups followed by L-Selectride reduction, are reported.
The photocycloaddition reactions of uridine and related compounds with 2,3-dimethyl-2-butene
Ishikawa,Itoh,Takayanagi,Oshima,Kawahara,Mizuno,Ogura
, p. 1922 - 1930 (2007/10/02)
The photochemical reactions of uracil and 5-fluorouracil derivatives with simple alkenes have been investigated. Photocycloaddition of uracil or 5-fluorouracil derivatives and 2,3-dimethyl-2-butene in acetone gave an enantiomeric mixture of cross cycloadducts (4, 7) in moderate yields. Under similar conditions, diastereomers of 4-substituted 7,7,8,8-tetramethyl-cis-2,4-diazabicyclo[4.2.0]octane-3,5-dione nucleosides (14-17) were formed from uridine or 5-fluorouridine derivatives in good yields. The structures and stereochemistry of these cycloadducts of the nucleoside series were elucidated on the basis of the proton nuclear magnetic resonance spectra and X-ray crystallographic analysis.
A FACILE SYNTHESIS OF 1,3-DIALKYL-5-FLUOROURACILS BY MEANS OF PHASE TRANSFER CATALYSIS
Hoshiko, Tomonori,Watanabe, Yutaka,Ozaki, Shoihiro
, p. 2429 - 2431 (2007/10/02)
The reaction of 5-fluorouracil with an alkyl halide in the presence of a phase transfer catalyst and potassium hydroxide gives 1,3-dialkyl-5-fluorouracil in good yield.
A new synthesis of n-blocked dihydrouracil and dihydroorotic acid derivatives using lithium tri-sec-butyl borohydride as reducing agent
Hannon, Stephen J.,Kundu, Nitya G.,Hertzberg, Robert P.,Bhatt, Ram S.,Heidelberger, Charles
, p. 1105 - 1108 (2007/10/02)
1,3-Di-N-substituted uracil and its derivatives have been reduced with lithium-tri-sec-butyl borohydride to the corresponding 5,6-dihydro compounds in excellent yields. Alkylation of 5-position of uracil is also very conveniently accomplished.
