Synthesis of Rovafovir Etalafenamide (Part I): Active Pharmaceutical Ingredient Process Development, Scale-Up, and Impurity Control Strategy
作者:Eric A. Standley、Dustin A. Bringley、Selcuk Calimsiz、Jeffrey D. Ng、Keshab Sarma、Jinyu Shen、David A. Siler、Andrea Ambrosi、Wen-Tau T. Chang、Anna Chiu、Jason A. Davy、Ian J. Doxsee、Mihaela M. Esanu、Jeffrey A. O. Garber、Youri Kim、Bernard Kwong、Olga Lapina、Edmund Leung、Lennie Lin、Andrew Martins、Jenny Phoenix、Jaspal Phull、Benjamin J. Roberts、Bing Shi、Olivier St-Jean、Xiang Wang、Li Wang、Nande Wright、Guojun Yu
DOI:10.1021/acs.oprd.1c00059
日期:2021.5.21
elaborated phosphonamidate alcohol. The assembly starts with a decarboxylative elimination of a β-hydroxyacid to yield the corresponding cyclicenolether, which is subsequently coupled to a functionalized phosphonamidate alcohol in an iodoetherification reaction. Oxidative syn elimination then installs the required fluoroalkene, after which a final deprotection reaction yields the active pharmaceutical
Synthesis of Rovafovir Etalafenamide (Part III): Evolution of the Synthetic Process to the Phosphonamidate Fragment
作者:Andrea Ambrosi、Dustin A. Bringley、Selcuk Calimsiz、Jeffrey A. O. Garber、Huy Huynh、Sankar Mohan、Keshab Sarma、Jinyu Shen、Jonah Curl、Bernard Kwong、Olga Lapina、Edmund Leung、Lennie Lin、Andrew Martins、Teague McGinitie、Jaspal Phull、Ben Roberts、Mary Rosario、Bing Shi、Eric A. Standley、Li Wang、Xueqing Wang、Guojun Yu
DOI:10.1021/acs.oprd.0c00428
日期:2021.5.21
Phosphonamidate 1 is a key fragment in the assembly of rovafovir etalafenamide, a novel nucleotide reverse transcriptase inhibitor under development at Gilead Sciences for the treatment of HIV infection. An early manufacturing route, relying on simulated moving bed (SMB) chromatography for the separation of phosphorus diastereomers, was executed on scale to produce multiple batches of 1. However, developing