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- W2253896648 abstract "With 9-(2-tosylvinyl)-9H-purines as the dipolarophiles, a series of chiral azacyclic nucleosides with four continuous stereocenters were obtained in 86-99% yields, >20:1 dr, and 94 → 99% ee via the Cu(I)-catalyzed asymmetric [3 + 2] cycloaddition. Both (E)- and (Z)-9-(2-tosylvinyl)-9H-purines were suitable dipolarophiles, enriching the structure diversity of azacyclic nucleosides. Furthermore, when α-methyl imino ester was explored, the corresponding azacyclic nucleoside with a chiral quaternary stereocenter could also be afforded with excellent results." @default.
- W2253896648 created "2016-06-24" @default.
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- W2253896648 date "2016-02-04" @default.
- W2253896648 modified "2023-10-14" @default.
- W2253896648 title "Synthesis of Azacyclic Nucleoside Analogues via Asymmetric [3 + 2] Cycloaddition of 9-(2-Tosylvinyl)-9<i>H</i>-purines" @default.
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- W2253896648 doi "https://doi.org/10.1021/acs.orglett.6b00108" @default.
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