C1(R)
O
O18
C2(S)
N
H
N8
C3(S)
O
H
O16
C4(R)
O
H
O17
C5(S)
O
O7
C6
C19(R)
N
H
N25
C24(S)
C23(R)
O
O34
C22(S)
C21(S)
N
H
N29
C20
C35(S)
C36(S)
C37(S)
C38(R)
O
O40
C39
C47(R)
C46(S)
C45(S)
C44(R)
O
O43
C48(S)
O
O50
C49
N
H
N12
O
H
O41
O
H
O59
O
H
O60
O
H
O42
O
H
O33
N
H
N55
N
H
N51
C9
N
H
2
N10
N
H
2
+
N11
C13
N
H
2
+
N14
N
H
2
N15
C26
N
H
2
+
N27
N
H
2
N28
C30
N
H
2
+
N31
N
H
2
N32
C52
N
H
2
N53
N
H
2
+
N54
C56
N
H
2
+
N57
N
H
2
N58