화합물 3 c - 1 에 대한 1 H NMR ( D 2 O ) : 0 . 95 ( m , peptide - H ) , 1 . 22 ( m , peptide - H ) , 1 . 55 ( m , peptide - H ) , 2 . 52 ( m , 4 H , CH 2 CH 2 CONH ) , 3 . 33 ( tt , 2 H , C - 6 - H 2 ) , 4 . 21 ( m , peptide - H ) , 4 . 98 ( s , 1 H , C - 5 - H ) , 5 . 43 ( t , H , C - 4 - H 2 )