dimethyl 7-oxabicyclo[2.2.1]hepta-2(3),5(6)-diene-2,3-dicarboxylate

(1S,4R,4aR,5R,9R,9aS)-dimethyl 5-chloro-6-oxo-4,4a,5,6,9,9a-hexahydro-1H-1,4-epoxy-5,9-ethenobenzo[7]annulene-2,3-dicarboxylate

6-硝基-2-甲基苯甲腈

2-氨基-6-甲基苯腈

2-氯-6-甲基苄腈