977
ATOM  N1   C2   N3   C4   C5  BR6   C7   O8   N9   C10
ATOM  C11  C12  C13  C14  C15
CONNECT -  N1   C2  N3  C4  C5 BR6 +
CONNECT  C2   N9  C7  C5
CONNECT  C4   C10  C11  C12  C13  C14  C15  C10
CONNECT  C7   O8