The chirality product is the important medicine midbody, which has an important application foreground.

所到手性物为重要医药中间，具有重要应用前景。

Lactide is the midbody for the preparation of poly(lactic acid), the ratio of lactic acid to lactide is low and hamper the extensive application of PLA.

丙交酯是由乳酸制备聚乳酸中间,率偏低是制约聚乳酸大规模应用关键。