γ-O-(4-hydroxy-3-methoxyphenacetyl) t-butyl N-t-boc L-glutamate

4-(2-diazoacetyl)-2-methoxyphenyl acetate

4-乙酰氧基-3-甲氧基苯甲酰氯

4-乙酰氧基-3-甲氧基苯甲酸

(Z)-2-methoxy-4-((2-methyl-5-oxooxazol-4(5H)-ylidene)methyl)phenyl acetate