Cytokinin of Wheat Germ Transfer RNA: 6-(4-Hydroxy- 3-methyl-2-butenylamino)-2-methylthio-9-β-D-ribofuranosylpurine

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Science  05 Dec 1969:
Vol. 166, Issue 3910, pp. 1272-1274
DOI: 10.1126/science.166.3910.1272


A new modified nucleoside is responsible, in part, for the cytokinin activity of transfer RNA from wheat germ. The structure as judged by mass spec-trometry is 6-(4-hydroxy-3-methyl-2-butenylamino)-2-methylthio-9-β-D-ribofuran-osylpurine. Unequivocal synthesis afforded material having ultraviolet, mass spectral, and chromatographic properties identical with those of the natural product.

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