It’s only fair to share… Limnetrelvir CAS 2923500-04-1 MF C27H23F4N5O4 MW 557.50 N-[(3R)-1-[4-cyano-2-(morpholine-4-carbonyl)-6-(trifluoromethyl)phenyl]pyrrolidin-3-yl]-8-fluoro-2-oxo-1H-quinoline-4-carboxamide N-{(3R)-1-[4-cyano-2-(morpholine-4-carbonyl)-6-(trifluoromethyl)phenyl]pyrrolidin-3-yl}-8-fluoro-2-oxo1,2-dihydroquinoline-4-carboxamideantiviral, ABBV-903, ABBV 903, 4TPS988XGG Limnetrelvir (ABBV-903) is a MPro inhibitor. Limnetrelvir could be used in antiviral research. SYN https://patentscope.wipo.int/search/en/detail.jsf;jsessionid=4D458E543A941751578F87216FA39801.wapp1nA?docId=WO2024081351&_cid=P10-MJQJMM-46773-1#detailMainForm:MyTabViewId:PCTDESCRIPTION Example 1 – Synthesis of Compound (2) (R)-N-(1-(4-cyano-2-(morpholine-4-carbonyl)-6-(trifluoromethyl)phenyl)pyrrolidin-3-yl)-8-fluoro-2-oxo-1,2-dihydroquinoline-4-carboxamide Compound 2F – Synthesis of 8-fluoro-2-oxo-1,2-dihydroquinoline-4-carboxylic acid [00035] A suspension of 7-fluoroindoline-2,3-dione (55 g, 333 mmol), malonic acid (41.6 g, 400 mmol) and sodium acetate (68.3 …