Stereoselective synthesis of cyclobutyl γ-amino acids leading to branched peptides with a cyclobutane core
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Add time:09/25/2019 Source:sciencedirect.com
Alternative synthetic routes are provided to synthesize γ-amino acids in their free form or conveniently protected for their selective incorporation into ramified γ-peptides with a cyclobutane core. The key synthetic-step involves the stereoselective conjugate addition of nitromethane to chiral cyclobutyl alkenoates prepared from (−)-verbenone.
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