Synthesis 2019; 51(17): 3231-3240
DOI: 10.1055/s-0037-1611548
paper
© Georg Thieme Verlag Stuttgart · New York

Dibenzo[b,e]azepin-6-ones and Seven-Membered Sultam Derivatives: Convenient Synthesis via Palladium-Catalyzed Regioselective Intra­molecular Heck Reaction and Application towards Drug-Like Small Molecules

Arijit Das
a   Department of Chemistry, The University of Burdwan, Burdwan-713104, West Bengal, India   eMail: iansary@chem.buruniv.ac.in
,
Arup Maiti
b   TCG Lifesciences Pvt. Ltd., BN-7, Salt Lake, Kolkata-700091, West Bengal, India   eMail: mrinal.kundu@tcgls.com
,
Mrinalkanti Kundu*
b   TCG Lifesciences Pvt. Ltd., BN-7, Salt Lake, Kolkata-700091, West Bengal, India   eMail: mrinal.kundu@tcgls.com
,
Kuldeep K. Roy
c   National Institute of Pharmaceutical Education and Research, 168 Maniktala Main Road, Kolkata- 700054, West Bengal, India
,
Inul Ansary*
a   Department of Chemistry, The University of Burdwan, Burdwan-713104, West Bengal, India   eMail: iansary@chem.buruniv.ac.in
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Publikationsverlauf

Received: 11. April 2019

Accepted after revision: 24. April 2019

Publikationsdatum:
14. Mai 2019 (online)


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Abstract

A new, convenient synthesis of dibenzo[b,e]azepin-6-ones and seven-membered sultam derivatives have been envisaged via Pd-catalyzed regioselective intramolecular Heck reaction of the corresponding easily accessible precursors. This protocol has been successfully implemented to synthesize N-methyldarenzepine in four steps and in good yield. Moreover, one of the intermediates has been utilized for the synthesis of a new analogue of darenzepine. Preliminary modeling studies were performed to investigate the binding potential to muscarinic acetylcholine receptor (M4).

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