\chemfig{
                        O% 5
               =[:305.8]% 3
                           (
                    >:[:5.8]% 2
                               (
                        -[:65.8]% 4
                         -[:5.8]% 115
                        -[:59.8]% 109
                       -[:107.8]% 110
                 -[:47.8,,,,drh]% 111
                       -[:347.8]% 112
                -[:287.8,,,,drh]% 107
                       -[:227.8]% 108
                                   (
                       -[:275.8,,,1]NH% 113
                        -[:203.8,,1]% 114
           -[:131.8,,,,dbr={73}{73}]% -> 115
                                   )
                -[:167.8,,,,drh]% -> 109
                               )
               -[:305.8,,,1]NH% 1
                -[:245.8,,1]% 93
                               (
                       -[:305.8]% 95
                         -[:5.8]% 96
                       -[:305.8]% 97
                         -[:5.8]% 98
                       -[:305.8]% 99
                         -[:5.8]% 100
                       -[:305.8]% 101
                         -[:5.8]% 102
                       -[:305.8]% 103
                               )
                   =[:185.8]O% 94
                           )
               -[:245.8]\mcfbelow{N}{H}% 6
               -[:185.8]% 7
                           (
                  <:[:245.8]% 9
                   -[:305.8]% 10
                               (
                   -[:245.8,,,2]H_2N% 12
                               )
                     =[:5.8]O% 11
                           )
               -[:125.8]% 8
                           (
                    =[:65.8]O% 15
                           )
               -[:185.8]\mcfbelow{N}{H}% 13
               -[:125.8]% 14
                           (
                    -[:65.8]% 16
                   -[:125.8]% 19
                               (
                        =[:65.8]O% 21
                               )
               -[:185.8,,,2]HO% 20
                           )
              <:[:185.8]% 17
                           (
    -[:265.8,,,,dbl={84}{0}]O% 22
                           )
               -[:125.8]\mcfabove{N}{H}% 18
              >:[:185.8]% 23
                 -[:270]% 24
                           (
                   =[:354.2]O% 26
                           )
           -[:258.4,,,1]NH% 25
            -[:246.8,,1]% 27
               -[:235.2]% 28
                           (
                   =[:319.4]O% 29
                           )
               -[:223.5]\mcfbelow{N}{H}% 30
               -[:211.9]% 31
                           (
                   -[:296.1]% 33
                   -[:356.1]% 34
                   -[:296.1]% 35
               -[:356.1,,,1]NH_2% 36
                           )
               -[:200.3]% 32
                           (
                   =[:284.5]O% 37
                           )
               -[:188.7]\mcfbelow{N}{H}% 38
               -[:177.1]% 39
                           (
                   <[:261.3]% 43
                   -[:321.3]% 44
                               (
                   -[:261.3,,,1]OH% 46
                               )
                    =[:21.3]O% 45
                           )
               -[:165.5]% 40
                           (
                   =[:249.7]O% 42
                           )
               -[:153.9]\mcfbelow{N}{H}% 41
               -[:142.3]% 47
                           (
                  <:[:226.5]% 49
                           )
               -[:130.6]% 48
                           (
                   =[:214.8]O% 51
                           )
             -[:119,,,2]HN% 50
            -[:107.4,,2]% 52
                           (
                   <[:191.6]% 54
                   -[:251.6]% 55
                               (
                   -[:191.6,,,2]HO% 57
                               )
                   =[:311.6]O% 56
                           )
                -[:95.8]% 53
                           (
                     =[:180]O% 58
                           )
            -[:84.2,,,2]HN% 59
             -[:72.6,,2]% 60
                  -[:61]% 61
                           (
                   =[:145.2]O% 62
                           )
                -[:49.4]\mcfabove{N}{H}% 63
                -[:37.7]% 64
                           (
                  <:[:121.9]% 104
               -[:181.9,,,2]HO% 105
                           )
                -[:26.1]% 91
                           (
                   =[:110.3]O% 92
                           )
                -[:14.5]\mcfabove{N}{H}% 90
                 -[:2.9]% 82
                           (
                    <[:87.1]% 84
                               (
                       -[:147.1]% 86
                        -[:87.1]% 87
                                   (
                       -[:147.1,,,2]HO% 89
                                   )
                        =[:27.1]O% 88
                               )
                    -[:27.1]% 85
                           )
               -[:351.3]% 81
                           (
                    =[:75.5]O% 83
                           )
               -[:339.7]\mcfabove{N}{H}% 71
               -[:328.1]% 69
                           (
                   -[:316.5]% 68
                               (
                        =[:40.6]O% 70
                               )
                   -[:304.8]O% 67
                   -[:293.2]% 65
                               (
                       <:[:17.4]% 66
                               )
                   -[:281.6]% -> 23
                           )
                <[:52.3]% 72
               -[:112.3]% 73
                           (
                   =[:172.3]O% 75
                           )
                -[:52.3]% 74
        -[:112.3,,,,drh]% 80
                           (
               -[:172.3,,,2]H_2N% 106
                           )
                -[:52.3]% 79
        -[:352.3,,,,drh]% 78
               -[:292.3]% 77
        -[:232.3,,,,drh]% 76
                           (
                   -[:172.3]% -> 74
                           )
}

.
