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Br<br />
H<br />
N<br />
O<br />
O<br />
N<br />
H<br />
<br />
<br />
Br<br />
O<br />
CH 3 O<br />
HO<br />
HO<br />
O<br />
<br />
OH<br />
OH<br />
HO<br />
OH<br />
O<br />
OH<br />
OH<br />
OH<br />
<br />
<br />
<br />
<br />
<br />
N<br />
H<br />
H<br />
CH 2 CH 2 CH 3<br />
<br />
<br />
<br />
<br />
<br />
O<br />
N<br />
CH 3<br />
O<br />
<br />
OH<br />
<br />
<br />
<br />
<br />
H 3 C<br />
N<br />
HO<br />
O<br />
OH
1-2<br />
<br />
<br />
<br />
<br />
<br />
NH 4 OCN<br />
Δ<br />
<br />
H 2 N<br />
C<br />
NH 2<br />
<br />
<br />
<br />
O<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
H 3 C<br />
N<br />
<br />
HO<br />
O<br />
OH
1-2<br />
<br />
<br />
<br />
<br />
<br />
NH 4 OCN<br />
Δ<br />
<br />
H 2 N<br />
C<br />
NH 2<br />
<br />
<br />
<br />
O<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
H 3 C<br />
N<br />
<br />
HO<br />
O<br />
OH