Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine

2-Chloro-3-amino-4-picoline (CAPIC) is a strategic building block for the preparation of nevirapine, a widely-prescribed non-nucleosidic reverse transcriptase inhibitor for the treatment of HIV-infected patients. A continuous synthesis to the bromo derivative of a CAPIC intermediate, 2-bromo-4-methy...

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Main Authors: Ashley R. Longstreet, Suzanne M. Opalka, Brian S. Campbell, B. Frank Gupton, D. Tyler McQuade
Format: Article
Language:English
Published: Beilstein-Institut 2013-11-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.9.292
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author Ashley R. Longstreet
Suzanne M. Opalka
Brian S. Campbell
B. Frank Gupton
D. Tyler McQuade
author_facet Ashley R. Longstreet
Suzanne M. Opalka
Brian S. Campbell
B. Frank Gupton
D. Tyler McQuade
author_sort Ashley R. Longstreet
collection DOAJ
description 2-Chloro-3-amino-4-picoline (CAPIC) is a strategic building block for the preparation of nevirapine, a widely-prescribed non-nucleosidic reverse transcriptase inhibitor for the treatment of HIV-infected patients. A continuous synthesis to the bromo derivative of a CAPIC intermediate, 2-bromo-4-methylnicotinonitrile, that terminates in a dead-end crystallization is described. The route uses inexpensive, acyclic commodity-based raw materials and has the potential to enable lower cost production of nevirapine as well as other value added structures that contain complex pyridines. The route terminates in a batch crystallization yielding high purity CAPIC. This outcome is expected to facilitate regulatory implementation of the overall process.
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spelling doaj.art-163f1c80c3374511963b38a2d0baac692022-12-21T18:30:39ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972013-11-01912570257810.3762/bjoc.9.2921860-5397-9-292Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapineAshley R. Longstreet0Suzanne M. Opalka1Brian S. Campbell2B. Frank Gupton3D. Tyler McQuade4Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, United StatesDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, United StatesDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, United StatesDepartment of Chemistry, Virginia Commonwealth University, 1001 West Main Street, P.O. Box 842006 Richmond, Virginia 23284, United StatesDepartment of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, United States2-Chloro-3-amino-4-picoline (CAPIC) is a strategic building block for the preparation of nevirapine, a widely-prescribed non-nucleosidic reverse transcriptase inhibitor for the treatment of HIV-infected patients. A continuous synthesis to the bromo derivative of a CAPIC intermediate, 2-bromo-4-methylnicotinonitrile, that terminates in a dead-end crystallization is described. The route uses inexpensive, acyclic commodity-based raw materials and has the potential to enable lower cost production of nevirapine as well as other value added structures that contain complex pyridines. The route terminates in a batch crystallization yielding high purity CAPIC. This outcome is expected to facilitate regulatory implementation of the overall process.https://doi.org/10.3762/bjoc.9.292continuousflow chemistryHIVKnoevenagelnevirapinenicotinonitriles
spellingShingle Ashley R. Longstreet
Suzanne M. Opalka
Brian S. Campbell
B. Frank Gupton
D. Tyler McQuade
Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
Beilstein Journal of Organic Chemistry
continuous
flow chemistry
HIV
Knoevenagel
nevirapine
nicotinonitriles
title Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
title_full Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
title_fullStr Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
title_full_unstemmed Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
title_short Investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
title_sort investigating the continuous synthesis of a nicotinonitrile precursor to nevirapine
topic continuous
flow chemistry
HIV
Knoevenagel
nevirapine
nicotinonitriles
url https://doi.org/10.3762/bjoc.9.292
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