\chemfig{
               OH% 3
    >:[:100,,1]% 14
                  (
            -[:200]% 25
                      (
                -[:260]% 30
            -[:200,,,2]HO% 8
                      )
            =[:140]O% 7
                  )
        -[:120]% 15
         -[:60]% 13
                  (
           <:[:120]O% 1
            >[:180]% 19
            -[:120]O% 2
            -[:180]% 23
                      (
               <:[:120]% 29
                      )
            -[:240]% 22
                      (
                -[:300]% 21
                          (
                          -% 20
                     -[:60]% -> 19
                          )
           <:[:240,,,2]H_2N% 12
                      )
       <:[:180,,,2]HO% 4
                  )
              -% 17
        -[:300]% 18
                  (
            -[:240]% 16
            -[:180]% -> 14
                  )
             =^% 26
                  (
        -[:300,,,1]OH% 6
                  )
         -[:60]% 28
       =^[:120]% 27
                  (
            -[:180]% 24
                      (
               =^[:240]% -> 17
                      )
        -[:120,,,2]HO% 5
                  )
         -[:60]% 31
                  (
            =[:120]O% 9
                  )
              -% 33
       =^[:300]% 34
                  (
            -[:240]% 32
                      (
                -[:180]% -> 28
                      )
            =[:300]O% 10
                  )
              -% 36
        =^[:60]% 38
        -[:120]% 37
       =^[:180]% 35
                  (
            -[:240]% -> 33
                  )
        -[:120]O% 11
         -[:60]% 39
}