methanesulfonic acid (2-{[(methylsulfonyl)oxy]methyl}quinolin-3-yl)methyl ester

2,3-喹啉二甲酸二甲酯

2-氨基苯甲醛

Benzoic acid 1-chloro-7-ethyl-3,6-dioxo-1,4,6,7-tetrahydro-3H-furo[3,4-c]pyran-7-yl ester

7-ethyl-1-hydroxy-3,6-dioxo-1,4,6,7-tetrahydro-3H-furo[3,4-c]pyran-7-yl benzoate