2019
DOI: 10.1021/acs.joc.8b03124
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Ring-Closing Metathesis on Commercial Scale: Synthesis of HCV Protease Inhibitor Simeprevir

Abstract: The key macrocyclization step in the synthesis of simeprevir, a hepatitis C virus (HCV) antiviral drug, was studied. N-Boc substitution on the diene precursor changes the site of insertion of the metathesis catalyst and, consequently, the kinetic model of the ring closing metathesis (RCM), enabling a further increase in the macrocyclization efficiency under simulated high dilution (SHD) conditions. NMR of the inserted species of both first and second generation RCM catalysts are reported and discussed.

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Cited by 17 publications
(12 citation statements)
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“…Simeprevir sodium (sodium; cyclopropylsulfonyl-[(1R,4R,6S,7Z,15R,17R)-17-[7-methoxy-8-methyl-2-(4-propan-2-yl-1,3-thiazol-2-yl)quinolin-4-yl]oxy-13-methyl-2,14-dioxo-3,13-diazatricyclo[13.3.0.04,6]octadec-7-ene-4-carbonyl]azanide) ( Table 2 ) – a small molecular drug targeting the NS3/4A protease of HCV was approved by FDA in 2013 as a component of Olysio™, for the treatment of chronic hepatitis C (CHC) infection [ 92 ]. Chemical work on the industrial-scale synthesis of this drug using ring-closing metathesis [ 122 ], for example, is still in progress.…”
Section: Molecular Mechanisms Of Action Of Non-nucleoside Structured Compoundsmentioning
confidence: 99%
“…Simeprevir sodium (sodium; cyclopropylsulfonyl-[(1R,4R,6S,7Z,15R,17R)-17-[7-methoxy-8-methyl-2-(4-propan-2-yl-1,3-thiazol-2-yl)quinolin-4-yl]oxy-13-methyl-2,14-dioxo-3,13-diazatricyclo[13.3.0.04,6]octadec-7-ene-4-carbonyl]azanide) ( Table 2 ) – a small molecular drug targeting the NS3/4A protease of HCV was approved by FDA in 2013 as a component of Olysio™, for the treatment of chronic hepatitis C (CHC) infection [ 92 ]. Chemical work on the industrial-scale synthesis of this drug using ring-closing metathesis [ 122 ], for example, is still in progress.…”
Section: Molecular Mechanisms Of Action Of Non-nucleoside Structured Compoundsmentioning
confidence: 99%
“…[106] In summary, the researchers at Boehringer Ingelheim put al ot of effort into optimizating the RCM process,n ot only focusing on practical issues but, importantly,u nderstanding its reaction mechanism and kinetics. [107] Thus,s ynthetic strategies optimized for Ciluprevir,s uch as controlling the effective molarity with N-protecting groups,w ork not only in closely related cases,such as the formation of the macrocyclic core of BI201302, [108] but were also useful in RCM leading to less related APIs,s uch as Simeprevir [109] and others.…”
Section: Applications In the Synthesis Of Active Pharmaceutic Ingredientsmentioning
confidence: 99%
“…Insgesamt betrieben die Wissenschaftler von Boehringer Ingelheim einen hohen Aufwand zur Optimierung des RCM‐Prozesses, konzentrierten sich dabei allerdings nicht nur auf praktische Aspekte, sondern auch auf das Verständnis des Mechanismus und der Kinetik [107] . Die für Ciluprevir optimierten Syntheseverfahren, wie die Regulierung der effektiven Molarität über eine N‐Schutzgruppe, eigneten sich nicht nur für strukturell ähnliche Fälle wie die Bildung des makrozyklischen Kerns von BI201302, [108] sondern ließen sich auch auf entferntere APIs wie Simeprevir [109] und einige weitere anwenden.…”
Section: Anwendungen In Der Synthese Aktiver Pharmazeutischer Wirkstoffe (Apis)unclassified
“…Aufsätze dern ließen sich auch auf entferntere APIs wie Simeprevir [109] und einige weitere anwenden.…”
Section: Angewandte Chemieunclassified