Synthesis 2016; 48(07): 1079-1086
DOI: 10.1055/s-0035-1561562
paper
© Georg Thieme Verlag Stuttgart · New York

Asymmetric Synthesis of Tetrahydro-β-carboline Alkaloids Employing­ Ellman’s Chiral Auxiliary

N. Siva Senkar Reddy
Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India   Email: basireddy@iict.res.in
,
R. Anji Babu
Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India   Email: basireddy@iict.res.in
,
B. V. Subba Reddy*
Natural Product Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India   Email: basireddy@iict.res.in
› Author Affiliations
Further Information

Publication History

Received: 13 November 2015

Accepted after revision: 08 January 2016

Publication Date:
05 February 2016 (online)


Abstract

A stereoselective synthesis of tetrahydro-β-carboline alkaloids has been accomplished using Ellman’s sulfinamide as a chiral source. This is the first report on the synthesis of chiral tetrahydro-β-carboline natural products using tert-butanesulfinamide through haloamide cyclization. Similarly, the synthesis of an indolizino[8,7-b]indole alkaloid, (–)-harmicine, has been achieved by means of allylation of an N-sulfinylimine, hydroboration, and SN2 substitution.

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