N
H
N1
C1(S)
C2
O
O1
C3
N
H
N2
C4(S)
C5
O
O2
C6
C7
C8
C9
N
H
N3
C10(S)
C11
O
O3
C12
C13
C14
C15
N
H
3
+
N4
N
H
N5
C16(S)
C17
O
O4
C18(S)
C19
C20
C21
N
H
N6
C22(S)
C23
O
O5
C24
C25
O
O6
O
H
O7
N
H
N7
C26(S)
C27
O
O8
C28
C29
O
O9
N
H
2
N8
N
H
N9
C30(S)
C31
O
O10
C32
C33
C34
C35
N
H
N10
C36(S)
C37
O
O11
C38
C39
O
O12
O
H
O13