Scalable Asymmetric Syntheses of Foslevodopa and Foscarbidopa Drug Substances for the Treatment of Parkinson’s Disease
作者:Alexander D. Huters、James Stambuli、Russell C. Klix、Mark A. Matulenko、Vincent S. Chan、Justin Simanis、David R. Hill、Rajarathnam E. Reddy、Timothy B. Towne、John R. Bellettini、Brian J. Kotecki、Benoit Cardinal-David、Jianguo Ji、Eric A. Voight、Minshan Shou、Selvakumar Balaraman、Abhishek Ashok、Soma Ghosh
DOI:10.1021/acs.joc.1c00905
日期:2022.2.18
levodopa 4′-monophosphate, 3) and foscarbidopa (FCD, carbidopa 4′-monophosphate, 4) were identified as water-soluble prodrugs of levodopa (LD, 1) and carbidopa (CD, 2), respectively, which are useful for the treatment of Parkinson’s disease. Herein, we describe asymmetric syntheses of FLD (3) and FCD (4) drug substances and their manufacture at pilot scale. The synthesis of FLD (3) employs a Horner–Wadsworth–Emmons
磷左旋多巴(FLD,左旋多巴4'-单磷酸,3)和磷卡比多巴(FCD,卡比多巴4'-单磷酸,4 )分别被鉴定为左旋多巴(LD, 1)和卡比多巴(CD,2)的水溶性前药,对治疗帕金森病很有用。在此,我们描述了 FLD ( 3 ) 和 FCD ( 4 ) 药物的不对称合成及其中试规模的制造。FLD ( 3 ) 的合成采用 Horner-Wadsworth-Emmons 烯化反应,然后是双键的对映选择性氢化作为引入具有所需立体化学的 α-氨基酸部分的关键步骤。FCD的合成(4) 具有 Mizoroki-Heck 反应,然后是对映选择性肼化以安装带有肼部分的四元手性中心。