HMD
ATOM BR1   O1   O2   N1   N2   N3   N4   N5   C1   C2 
ATOM  C3   C4   C5   C6   C7   C8   C9   C10  C11
CONNECT - BR1   C1  N1  C4  C3  C2  C1 +
CONNECT  O1   C5  N2  C6  C7  C8  C3
CONNECT  O2   C10  N3  C11  N4  C9  C8
CONNECT  N5   C11
CONNECT  C4   C5
CONNECT  C9   C10