1: DL-glutamic acid; benzyl chloroformate With sodium hydroxide in water; toluene 2: toluene-4-sulfonic acid in benzene Heating; 3: With sodium hydroxide in 1,4-dioxane; water Further stages.;
参考文献
Boyer; Stanchev; Fairbanks; Davis
Chemical communications (Cambridge, England), 2001 , # 19 p. 1908 - 1909