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The first ratiometric probe for lysine was presented. This coumarin-based probe could selectively detect Lys over other natural amino acids in water with a large red shift up to 83 nm, which utilized both the basicity and the nucleophilicity of the terminal amino group of Lys.
(S)- and (R)-α-furfuryl amides, obtained from the kinetic resolution of (R, S)-α-furfuryl amide using the modified Sharpless asymmetric epoxidation, have been transformed into four δ-hydroxy α-amino lactones (1S, 3S)-1, (1R, 3R)-1, (1S, 3R)-1, (1R, 3S)-1, using Sharpless asymmetric dihydroxylation as the key step. The much more efficient method of the addition of chiral aldimine 10 with allylic Grignard...
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