3-hydroxy-4-oxo-2,3,4,5,6,7-hexahydrobenzofuran-3-carboxylic acid ethyl ester

O-(2-hydroxy-ethyl)-cyclohexanone oxime

6,7-二氢-4(5H)-苯并呋喃酮

4-氧杂-4,5,6,7-四氢苯并[B]呋喃-3-羧酸

2-(2-bromo-1-ethoxyethyl)cyclohexanone