Haidong Yu Yu, H. W., Ballard, C. E., Boyle, P. D., & Wang, B. H. (2002). An inexpensive carbohydrate derivative used as a chiral auxiliary in the synthesis of alpha-hydroxy carboxylic acids. TETRAHEDRON, 58(38), 7663–7679. https://doi.org/10.1016/S0040-4020(02)00871-2 Ballard, C. E., Yu, H., & Wang, B. (2002). [Review of Recent developments in depsipeptide research]. CURRENT MEDICINAL CHEMISTRY, 9(4), 471–498. https://doi.org/10.2174/0929867023371049