6-氯恶唑并[4,5-b]吡啶-2(3H)-酮

6-chloro-3-(hydroxymethyl)-[1,3]oxazolo[4,5-b]pyridin-2-one

2-氨基-3-羟基吡啶

2,3-二氢吡啶并[2,3-d][1,3]噁唑-2-酮

6-chloro-3-chloromethyl-3H-oxazolo[4,5-b]pyridin-2-one