7576-16-1Relevant articles and documents
SYNTHESIS OF LEVOMETHADONE HYDROCHLORIDE OR DEXTROMETHADONE HYDROCHLORIDE AND METHODS FOR USE THEREOF
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Paragraph 00339-00344, (2017/03/14)
Highly efficient methods for synthesis of levomethadone hydrochloride or dextromethadone hydrochloride are provided starting from D-alanine, or L-alanine, respectively, with retention of configuration. Methods for treating a subject are provided comprising administering a composition comprising an effective amount of levomethadone hydrochloride having not more than 10 ppm dextromethadone.