3-Chloroisoxazolo[4,5-b]pyridine
Oxazolo[4,5-b]pyridine-2(3H)-thione
3-Bromoisoxazolo[5,4-b]pyridine
Oxazolo[4,5-c]pyridine
Oxazolo[5,4-b]pyridine-2(1H)-thione
