Alstoyunine C (234)
N
+
N
O
O
O
-
O
OH
N
+
N
+
O
-
O
O
O
-
O
OH
Alstoyunine D (235)
N
+
O
O
N
O
-
Alstoyunine E (236)
N
O
O
N
O
O
Alstoyunine F (237)
N
O
O
N
O
O
O
Alstoyunine G (238)
Alstoyunine H (239)
N
OH
Cl
N
H
O
O
O
O
N
H
N
R
2
R
1
Alstoyunine A (232); R
1 = OMe, R
2 = OH
Alstoyunine B (233); R
1 = OH, R
2 = OMe
N
O
O
N
Vinorine (240)
N
N
O
O
O
Perakine (241)
Vellosimine (242)
N
H
N
O
N
O
N
H
O
O
O
Lochnerinine (243)
N
N
H
O
O
Tabersonine (244)
N
N
O
O
OH
Raucaffrinoline (245)
11-Methoxy tabersonine (246); R = H
19-acetoxy-11-methoxytabersonine (247);
R = OAc
N
N
H
O
O
O
N
N
H
O
O
O
O
O
O
O
(-)-Echitoveniline (248)
N
N
H
O
O
O
O
O
O
O
Echitoserpidine (250)
Vellosiminol (251)
Picraline (249)
N
H
N
O
O
O
O
O
19(Z)-burnamine-17-O-3',4',5'-trimethoxybenzoate (252)
N
N
H
O
O
OH OH
Compactinervine (253)
N
O
O
O
HN
19-Epi-ajmalicine (254)
O
O
N
HN
HO
Alloyohimbine (255)
N
H
N
OH
R
NH
N
O
O
O
OMe
MeO
MeO
O
O
Fig. 14.48 Chemical structures of various alkaloids from A. yunnanensis (232–255)
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