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- W2002051202 abstract "Abstract Sonogashira coupling of 5-iodo-1-methyluracil or 5′- O -TBDMS-5-iodo-2′,3′- O -isopropylideneuridine with alkynes gave 5-(alkyn-1-yl) derivatives that underwent 6-lithiation/iodination to give 5-(alkyn-1-yl)-6-iodo-(1-methyluracil or uridine) intermediates (57–80%). Coupling of the 5-(alkyn-1-yl)-6-iodo intermediates gave 5,6-bis(alkyn-1-yl)pyrimidines and protected nucleosides (51–79%). Two of the 5,6-bis(ethynyl)-1,3-dimethyluracil derivatives underwent Bergman cycloaromatization at 130°C with half-lives of 2–8 h." @default.
- W2002051202 created "2016-06-24" @default.
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- W2002051202 date "2001-02-27" @default.
- W2002051202 modified "2023-09-25" @default.
- W2002051202 title "ChemInform Abstract: Synthesis of 5,6-Bis(alkyn-1-yl)pyrimidines and Related Nucleosides." @default.
- W2002051202 cites W2952562134 @default.
- W2002051202 doi "https://doi.org/10.1002/chin.200109138" @default.
- W2002051202 hasPublicationYear "2001" @default.
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