期刊
ORGANIC PROCESS RESEARCH & DEVELOPMENT
卷 20, 期 8, 页码 1476-1481出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.oprd.6b00163
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Doravirine is non-nucleoside reverse transcriptase inhibitor (NNRTI) currently in phase III clinical trials for the treatment of HIV infection. Herein we describe a robust kilo-scale synthesis for its manufacture. The structure and origin of major impurities were determined and their downstream fate-and-purge studied. This resulted in a redesign of the route to introduce the key nitrile functionality via a copper mediated cyanation which allowed all impurities to be controlled to an acceptable level. The improved synthesis was scaled to prepare similar to 100 kg batches of doravirine to supply all preclinical and clinical studies up to phase III. The synthesis affords high-quality material in a longest linear sequence of six steps and 37% overall yield.
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