New synthesis of a late-stage tetracyclic key intermediate of lumateperone

New approaches have been tested for the synthesis of lumateperone intermediates. As a result of these efforts, a novel synthesis of the late-stage tetracyclic key intermediate of lumateperone starting from the commercially available quinoxaline is described. The tetracyclic skeleton was constructed...

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Main Authors: Mátyás Milen, Bálint Nyulasi, Tamás Nagy, Gyula Simig, Balázs Volk
Format: Article
Language:English
Published: Beilstein-Institut 2022-06-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.18.66
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author Mátyás Milen
Bálint Nyulasi
Tamás Nagy
Gyula Simig
Balázs Volk
author_facet Mátyás Milen
Bálint Nyulasi
Tamás Nagy
Gyula Simig
Balázs Volk
author_sort Mátyás Milen
collection DOAJ
description New approaches have been tested for the synthesis of lumateperone intermediates. As a result of these efforts, a novel synthesis of the late-stage tetracyclic key intermediate of lumateperone starting from the commercially available quinoxaline is described. The tetracyclic skeleton was constructed by the reaction of 1-trifluoroacetyl-4-aminoquinoxaline with ethyl 4-oxopiperidine-1-carboxylate in a Fischer indole synthesis. The inexpensive starting material, the efficient synthetic steps, and the avoidance of the borane-based reduction step provide a reasonable potential for scalability.
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spelling doaj.art-d17b83791c4a444e9567ef12d722146c2022-12-22T01:18:49ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972022-06-0118165365910.3762/bjoc.18.661860-5397-18-66New synthesis of a late-stage tetracyclic key intermediate of lumateperoneMátyás Milen0Bálint Nyulasi1Tamás Nagy2Gyula Simig3Balázs Volk4Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, 1475 Budapest, P.O. Box 100, Hungary Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, 1475 Budapest, P.O. Box 100, Hungary Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, 1475 Budapest, P.O. Box 100, Hungary Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, 1475 Budapest, P.O. Box 100, Hungary Egis Pharmaceuticals Plc., Directorate of Drug Substance Development, 1475 Budapest, P.O. Box 100, Hungary New approaches have been tested for the synthesis of lumateperone intermediates. As a result of these efforts, a novel synthesis of the late-stage tetracyclic key intermediate of lumateperone starting from the commercially available quinoxaline is described. The tetracyclic skeleton was constructed by the reaction of 1-trifluoroacetyl-4-aminoquinoxaline with ethyl 4-oxopiperidine-1-carboxylate in a Fischer indole synthesis. The inexpensive starting material, the efficient synthetic steps, and the avoidance of the borane-based reduction step provide a reasonable potential for scalability.https://doi.org/10.3762/bjoc.18.66drug substanceindole synthesiskey intermediateprotecting grouptelescoping
spellingShingle Mátyás Milen
Bálint Nyulasi
Tamás Nagy
Gyula Simig
Balázs Volk
New synthesis of a late-stage tetracyclic key intermediate of lumateperone
Beilstein Journal of Organic Chemistry
drug substance
indole synthesis
key intermediate
protecting group
telescoping
title New synthesis of a late-stage tetracyclic key intermediate of lumateperone
title_full New synthesis of a late-stage tetracyclic key intermediate of lumateperone
title_fullStr New synthesis of a late-stage tetracyclic key intermediate of lumateperone
title_full_unstemmed New synthesis of a late-stage tetracyclic key intermediate of lumateperone
title_short New synthesis of a late-stage tetracyclic key intermediate of lumateperone
title_sort new synthesis of a late stage tetracyclic key intermediate of lumateperone
topic drug substance
indole synthesis
key intermediate
protecting group
telescoping
url https://doi.org/10.3762/bjoc.18.66
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