\chemfig{

\chemfig{
O% 5
=[:270]% 3
(
-[:210]% 2
(
<[:150]% 4
-[:90.4,2.094]% 115
-[:18]% 109
-[:330]% 110
-[:30,,,,dlh]% 111
-[:90]% 112
-[:150,,,,dlh]% 107
-[:210]% 108
(
-[:162]\mcfabove{N}{H}% 113
-[:234]% 114
-[:306,,,,dbl={73}{73}]% -> 115
)
-[:270,,,,dlh]% -> 109
)
-[:270,,,2]HN% 1
-[:330,,2]% 93
(
-[:270]% 95
-[:210]% 96
-[:270]% 97
-[:330]% 98
-[:30]% 99
-[:330]% 100
-[:270]% 101
-[:210]% 102
-[:270]% 103
)
=[:30]O% 94
)
-[:330]\mcfbelow{N}{H}% 6
-[:30]% 7
(
<:[:90]% 9
-[:30]% 10
(
-[:330,,,1]NH_2% 12
)
=[:90]O% 11
)
-[:330]% 8
(
=[:270]O% 15
)
-[:30]\mcfabove{N}{H}% 13
-[:330]% 14
(
<:[:270]% 16
-[:330]% 19
(
=[:270]O% 21
)
-[:30,,,1]OH% 20
)
-[:30]% 17
(
=[:90]O% 22
)
-[:330]\mcfbelow{N}{H}% 18
-[:30]% 23
<:[:90]% 24
(
=[:150]O% 26
)
-[:30,,,1]NH% 25
-[:90,,1]% 27
-[:30]% 28
(
=[:90]O% 29
)
-[:330]\mcfbelow{N}{H}% 30
-[:30]% 31
(
-[:90]% 33
-[:30]% 34
-[:90]% 35
-[:30,,,1]NH_2% 36
)
-[:330]% 32
(
=[:270]O% 37
)
-[:30]\mcfabove{N}{H}% 38
-[:330]% 39
(
<:[:270]% 43
-[:330]% 44
(
-[:30,,,1]OH% 46
)
=[:270]O% 45
)
-[:30]% 40
(
=[:90]O% 42
)
-[:330]\mcfbelow{N}{H}% 41
-[:30]% 47
(
<:[:90]% 49
)
-[:330]% 48
(
=[:30]O% 51
)
-[:270,,,2]HN% 50
-[:330,,2]% 52
(
<[:30]% 54
-[:330]% 55
(
-[:270,,,1]OH% 57
)
=[:30]O% 56
)
-[:270]% 53
(
=[:330]O% 58
)
-[:210,,,2]HN% 59
-[:270,,2]% 60
-[:210]% 61
(
=[:270]O% 62
)
-[:150]\mcfabove{N}{H}% 63
-[:210]% 64
(
<:[:270]% 104
-[:330,,,1]OH% 105
)
-[:180,1.732]% 91
(
-[:150,,,,dlhs]O% 92
)
-[:270,,,1]NH% 90
-[:210,,1]% 82
(
<[:270]% 84
(
-[:330]% 86
-[:270]% 87
(
-[:210,,,2]HO% 89
)
=[:330]O% 88
)
-[:210]% 85
)
-[:150]% 81
(
=[:90]O% 83
)
-[:210]\mcfbelow{N}{H}% 71
-[:150]% 69
(
-[:90]% 68
(
=[:30]O% 70
)
-[:150]O% 67
-[:90]% 65
(
<[:30]% 66
)
-[:150]% -> 23
)
<[:210]% 72
-[:270]% 73
(
=[:330]O% 75
)
-[:210]% 74
-[:270,,,,drh]% 80
(
-[:330,,,1]NH_2% 106
)
-[:210]% 79
-[:150,,,,drh]% 78
-[:90]% 77
-[:30,,,,drh]% 76
(
-[:330]% -> 74
)
}