Preparation | The synthesis of fluorene methoxycarbonyl D-cyclohexylglycine has been reported in the literature. Using cyclohexyl bromide as the raw material, in the presence of sodium alkoxide, it undergoes a alkylation reaction with diethyl malonate, and then hydrolyzes, acidifies, and decarboxylates to obtain cyclohexyl acetic acid; the latter is then brominated and ammonolysis DL-Cyclohexylglycine; finally, acylation reaction occurs in the presence of fluorene methoxycarbonyl chloride to obtain fluorene methoxycarbonyl D-cyclohexylglycine [1]. The synthesis reaction route is as follows: |