D-lactic acid in chiral synthesis

D-Lactic acid with high optical purity (97%) as a chiral center is a variety of chiral substance precursor, is an important intermediate of organic synthesis, chiral raw material, widely used in pharmaceutical, efficiency and low toxicity pesticides and herbicides , cosmetics and other fields chiral synthesis. For example, Japanese Tatari  use of Daicel Chemical Industries, Inc. D-lactic acid manufacturing quality herbicides Puma (Puma Super).
Germany Hoeehst company also developed the buffered lactic acid as the raw material of new efficient herbicide SHINING (Whip Super).
German company BASF to D-lactic acid isopropyl ester as raw materials to produce herbicide Duplosan, and has mass market.
 In addition, calcium antagonists antihypertensive drugs, picolinic acid derivatives and MCPA acid, fluorine-based herbicides, also with high optical purity D-lactic acid as a raw material.