Poly(β-amino acid)s. II. Polycondensation of p-Nitrophenyl β-amino-β-phenylpropionate
نویسندگان
چکیده
منابع مشابه
Kinetic resolution of aromatic β-amino acids by ω-transaminase.
Racemic aromatic β-amino acids have been kinetically resolved into (R)-β-amino acids with high enantiomeric excess (>99%) by a novel ω-TA with ca. 50% conversion.
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αβα-Tripeptide that contains a cyclic β-amino acid with an eight-membered ring, a cis-2-aminocyclooct-5-enecarboxylic acid (cis-ACOE) or a cis-2-aminocyclooctanecarboxylic acid (cis-ACOC) displayed an 11/9-helical turn in the crystal state. The related α/β-peptide oligomers were shown to adopt 11/9-helical conformations in solution.
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A general and simple procedure to access chiral β'-amino-α,β-enones, in seven steps, from an α,β unsaturated ester has been described. The use of a Horner-Wadsworth-Emmons reaction as a key step for generating the β'-amino-α,β-enones, permits access to a range of substrates under mild conditions and in moderate to high yield.
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ژورنال
عنوان ژورنال: Polymer Journal
سال: 1972
ISSN: 0032-3896,1349-0540
DOI: 10.1295/polymj.3.189