섬유

studies on the $beta$ -turn of peptides. iv. effect of the chain length on the cd spectra of n-(2,4-dinitrophenyl)-(gly) //n-//d-ala-//l-pro-(gly)//n p-nitroanilides (n $equals$ 1 $minus$ 3)

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 229
n-(2,4-dinitrophenyl)-(gly)//n-//d-ala-//l-pro-(gly)//n p-nitroanilides (7b, n $equals$ 2; 7c, n $equals$ 3) were synthesized in order to study the effect of chain length on their conformations. the cd spectra of both 7b and 7c showed similar patterns to that of 7a (n $equals$ 1), but their cotton effects were much weaker. therefore, both compounds seem still to have some populations of folded conformers because their cotton effects near 350 nm were significantly larger than those of the tetrapeptide derivatives in random comformation. however, the population of the folded conformers must be quite small. 8 refs
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