摘要
We describe an original asymmetric synthesis of (S)-alpha-methylDOPA proceeding by the concept of memory of chirality, the only source of chirality being the starting D-alanine. The initial chirality of the amino acid is temporarily transferred to a dynamic axial chirality of a tertiary aromatic amide. The (S)-alpha-methylDOPA hydrochloride is obtained after four steps with 98% ee.
- 出版日期2012-10-5