Synthesis of 2-azabicyclo[m.n.0]-alkanes and their application towards the synthesis of strychnos and stemona classes of alkaloids
Title | Synthesis of 2-azabicyclo[m.n.0]-alkanes and their application towards the synthesis of strychnos and stemona classes of alkaloids |
Publication Type | Journal Article |
Year of Publication | 2020 |
Authors | Majumder, B, Pandey, G |
Journal | European Journal of Organic Chemistry |
Volume | 2020 |
Issue | 25 |
Pagination | 3883-3888 |
Date Published | JUL |
Type of Article | Article |
ISSN | 1434-193X |
Keywords | alkaloids, amines, Grignard reaction, Michael addition, Natural products |
Abstract | 2-Azabicyclo[m.n.0]alkane ring systems, the conceptual precursors towards the synthesis of Strychnos and Stemona classes of alkaloids, were synthesized from tert-butyl 2-(phenylsulfonyl)-7-aza-bicyclo[2.2.1]hept-2-ene-7-carboxylate by alkyl Grignard reaction and intramolecular cyclisation of the in situ generated ring opening product 2. The synthesized cis-hexahydroindole 3 and cis-octahydro-benzo[b]azepine 5 scaffolds were utilized to construct the advanced intermediates 25 and 35, respectively, towards the synthesis of the corresponding Strychnos and Stemona classes of alkaloids. |
DOI | 10.1002/ejoc.202000507, Early Access Date = MAY 2020 |
Type of Journal (Indian or Foreign) | Foreign |
Impact Factor (IF) | 2.889 |
Divison category:
Organic Chemistry
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