1,3-苯二甲醇, ALPHA1-(氨基甲基)-4-羟基-

沙美特罗

螺佐呋酮

1H,3H-8-acetyl-4,5-dihydronaphto<1,2-c:4,3-b'>difuran-1-one

methyl 5-acetyl-2-(trifluoromethylsulfonyloxy)benzoate