[structure: see text] We describe the synthesis of a chain-terminating mRNA cap dinucleotide and its use in the in vitro transcription of homogeneously capped RNA. Computer modeling strongly indicates that RNA capped with the new compound will be a substrate for cap-dependent translation.
A highly enantioselective Morita-Baylis-Hillman reaction of maleimides with isatin derived ketimines has been developed to obtain enantiomerically enriched 3-substituted-3-aminooxindoles using β-isocupreidine as an organocatalyst. Maleimide acting as a nucleophile provides products with up to 99% ee.
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