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OH
OH
R
N
N
R
HO
OH
N
N
39a
R = H
39b
R = Me
39c
R = Bu
40
N
OH
O
N
n
N
HO
N
OH
41
(n = 2)
42
(n = 4)
43
(n = 6)
OH
FIGURE 12.16
Synthesis of angiogenesis antagonists, 1-Deoxynojiromycin analogs.
HO
HO
O
N
N
O
OH
n
N
N
HO
OH
44
n = 1
45
n = 4
O
O
O
HO
HO
O
N
N
O
O
O
N
N
HO
N
N
OH
N
N
O
N
N
N
N
N
HO
O
N
OH
N
HO
N
N
N
HO
N
OH
N
OH
HO
OH
HO
HO
HO
OH
OH
HO
OH
OH
46
n = 1
47
n = 4
48
FIGURE 12.17
Multivalent imino sugars.
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