中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-(4'-chlorophenyl)propane-1,3-diol | 122098-61-7 | C9H11ClO2 | 186.638 |
(S)-2-(4-氯苯基)-3-羟丙基乙酸酯 | [(2S)-2-(4-chlorophenyl)-3-hydroxypropyl] acetate | 159248-22-3 | C11H13ClO3 | 228.675 |
We report two different chemoenzymatic enantioselective syntheses of baclofen based on the distinction between enantiotopic ester groups in compounds bearing a prochiral centre. In the first approach, the key step is the highly stereoselective enzymatic hydrolysis of dimethyl 3-(4-chlorophenyl)glutarate by chymotrypsin in an aqueous medium. In the second approach, the key step is the enzyme-catalyzed esterification of 2-(4-chloropheny 1)-1,3-propanediol by acetic anhydride in the presence of a lipase in an organic medium.