C
N
H
N
O
O
C1
N
N1
O
O1
C2
N
H
N2
O
O2
C3
N
N3
O
O3
C4
N
H
N4
O
O4
C5
N
N5
O
O5
C6
O
O6
C7
N
H
N7
O
O7
C8
N
N8
O
O8
C9
N
N9
O
O9
C10
N
H
N10
C11
N
H
2
N11
C12
N
H
N12
C13
N
N13
C14
N
H
N14
C15
N
N15
C16
N
H
N16
C17
N
N17
C18
C19
N
H
N19
C20
N
N20
C21
N
N21
C22
N
H
N22
C23
N
H
2
N23
C24(R)
C25
C26
C27
C28
C29
C30
C31
C32
C33
C34
C35
C36
C37
C38
C39
C40
C41
C42
C43
C44
C45
C46
C47
C48
C49
C50(R)
C51
C60
C61