A Stereoselective Approach to Both 3,4-trans-Disubstituted Pyrrolidin-2-ones and Pyrrolidines. A Convenient Synthesis of (3R,4R)-4-Benzyl-3-pyrrolidinecarboxylic Acid
[EN] DIHYDROPYRIMIDINE COMPOUND, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF [FR] COMPOSÉ DE DIHYDROPYRIMIDINE, SON PROCÉDÉ DE PRÉPARATION ET SON APPLICATION [ZH] 一种二氢嘧啶类化合物、其制备方法及应用