butyric ester

Conclusions: One compound is identified as the title compound 2-benzyloxy-5-fluoro-4-oxo-pyrimidine-3-butyric acid ethyl ester, and the other one is its formula isomer.

结论：通过IR谱确证一个化合物是目标物2-苄氧基-5-氟-4-嘧啶酮-3-丁酸乙酯，另一化合物是它的同分异构体。

Screening for2-bromo-butyric acid as the starting material, after ammonolysis, esterification, ester amine solution, split, five-step cyclization reaction Levetiracetam.

筛选以2-溴代丁酸为起始原料，经氨解，酯化，酯胺解，拆分，环合五步反应制得左乙拉西坦。

the catalytic synthesis of butyric ester by solid stannous chloride

固体无机氯化物催化合成丁酸酯

synthesis of 4-( p-nitrophenyl) butyric ester by fluorous biphasic catalysis

氟双相催化下4-（对-硝基苯基）丁酸酯的合成

synthesis of 4- (p-nitrophenyl) butyric ester by fluorous biphasic catalysis

氟双相催化下4-（对-硝基苯基）丁酸酯的合成