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The α-cerboxamido(iso)quinoline motif is frequently found in biologically active compounds, with more than 6800 structures listed in Scifinder, mainly in drug patents.
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3 catalysis, the corresponding cycloadduct 5a was isolated in 60% yield as a 2:1 mixture of epimers at the ester α-position. Good stereocontrol of the remaining stereogenic centers was observed (see, ref 3c). diagram presented
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