醋酸叔丁酯

4-nitro-3-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)benzoic acid

4-溴苯甲酸叔丁酯

1-甲氧基-1,2-丙二烯

tert-butyl 6-chloropyridine-2-carboxylate