Synthesis and characterization of linear and cyclic ... - EleA@UniSA

HO
N
O O
N
N
HS
N
N
O
N
STr
N
N
O O
O
O
72
O
O
O O
N
O
71
N
N
N
SH
O
31
N
O
N
N
N
N
O
S
N
N
N
O O
O O
73
O O
O O
Figure 1.30, block II. Structures of octameric linear (71) and corresponding cyclic 72 and 73
TrS
N
N
N
O
O
O
S
O
O
N
N
N
N
O O
74
O
N
O
TrS
OH
N
N
N
O O
N
O
N
N O
O 76
O
O
N
N
O
O N
N
O O O
N S
N N
O
N
N
O
N
O
S
N
NH
N
O
O
O
N
N
HS
STr
O
N
N
N
S
N
N
O O
N
O N
N O
O 75
O
O
N
N
O O N
N
O O O
N
N N
SH
Figure 1.30, block III. Structures of linear (74) and corresponding cyclic 75, 76 and 77.
O
O
N
N
O O
O
77
N
O
OH
S
N
O
N
N
O
O
NH
NH