6-chloro-7-fluoro-3-oxo-3,4-dihydro-2H-1,4-benzothiazine

7-fluoro-4H-1,4-benzothiazin-3-one

3,3,6,6-四甲氧基-1,4-环己二烯

Methyl 3,3,6,6-tetramethoxy-1,4-cyclohexadiene-2-acetate

2-(2-methyl-1-oxo-3,4-dihydronaphthalen-2-yl)acetic acid