4-氯苯丙酸乙酯

4-氟苯丙酸乙酯

3-苯并[1,3]二氧杂环戊烯-5-基-丙酸乙酯

8-methyl-8H-benzo[5,6]chromeno[2,3-b]pyridine-9,12-dione

8-methyl-9,12-dioxo-8,12-dihydro-9H-benzo[5,6]chromeno[2,3-b]pyridine-10-carboxylic acid ethyl ester