BRG ATOM N9 C4 N3 C2 N2 N1 C6 O6 C5 N7 ATOM C8 BR CONNECT - N9 C4 N3 C2 N2 + CONNECT N9 C8 N7 C5 C4 CONNECT C2 N1 C6 O6 CONNECT C6 C5 CONNECT C8 BR