Part F | 32.3
768 Part F Marine Derived Metabolites
64: R 1 , R 2 = H
65: R 1 = OH , R 2 = H
66: R 1 , R 2 = OH
62: Δ
17, 20, 25
63: Δ
20, 25 , 17, 18-dihydro
44: trans, trans
45: cis, trans
35: R = H
36: R = CH 3
47: R 1 , R 2 = H
48: R 1 , R 2 =
56: R = H
57: R = COCH 3
38, 39: Epimeric at C-2
33
41
42
46
43
34
37
40
51
52
60
67
59
58
53
54
61
55
50
49
HO
HO
HN
HN
HN
HN
NH
NH 2
H 2 N
HN
OH
OH
NH
NH
NH
OH
HN
HN
HO
NH
OH
NH
NH
NH
NH
R 1
R 2
OH
RO
HN
R 1
R 2
OH
NH
CH 3
OH
OH NH
CHO
O
O
O
O
O
O
O
N
O
O
O
O
O
O
O
O
O
O
O
O
2
3
4
O
O
O
O
N
N
N
N
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
O
O
N
O
O
N
O
O
O
O
O
O
O
O
O
O
O
N
N
N
O
O
O
N
6
17
20
25
1'
1
N
N
N
N
N
O
O
O
O
O
S
O
N
N
S 2
N
N
N
N
N
O
O
O
O
O
O
O
O
N
N
N
N
N
N
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
2
N
O
O
N
N
N
H
N
H
N
H
N
N
H
H
N
N
H
N
H
N
H
N
H
N
H
N
H
N
H
N
H
H
N
H
N
N
H
N
H
O
R
Fig. 32.6 Chemical structures of compounds 33–67