期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 67, 期 12, 页码 4241-4249出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo016406r
关键词
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The proline residue of dipeptides Ser-Pro and Pro-Ser has been replaced by 7-azabicyclo[2.2.1]heptane-1-carboxylic acid (Ahc), a conformationally restricted analogue of proline that is capable of mimicking distorted amides. The conformational analysis of the new peptides in the solid state revealed that the Ahc-Ser sequence displays a type I beta-turn, which includes a distorted amide bond. In contrast, the Ser-Ahc sequence exists in a nonfolded structure.
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