An optimised cost-effective synthesis of the new antitussive drug, DF1012, is herewith reported. The new synthetic route to the key intermediate DF1005 is based on the unusual deprotection step of the 1-tert-butyl-3-cyano-7-azaindole intermediate, which can also be regarded as a convenient way for the industrial production of the expensive 7-azaindole 1. The second key intermediate, endo-tropanamine 6, was obtained in high yield by a novel one-pot stereoselective process using a Pd-catalysed reductive amination procedure.

Allegretti, M., Anacardio, R., Cesta, M., Curti, R., Mantovanini, M., Nano, G., et al. (2003). A practical synthesis of 7-azaindolylcarboxy-endo-tropanamide (DF 1012). ORGANIC PROCESS RESEARCH & DEVELOPMENT, 7(2), 209-213 [10.1021/op025570t].

A practical synthesis of 7-azaindolylcarboxy-endo-tropanamide (DF 1012)

ZAMPELLA, GIUSEPPE
2003

Abstract

An optimised cost-effective synthesis of the new antitussive drug, DF1012, is herewith reported. The new synthetic route to the key intermediate DF1005 is based on the unusual deprotection step of the 1-tert-butyl-3-cyano-7-azaindole intermediate, which can also be regarded as a convenient way for the industrial production of the expensive 7-azaindole 1. The second key intermediate, endo-tropanamine 6, was obtained in high yield by a novel one-pot stereoselective process using a Pd-catalysed reductive amination procedure.
Articolo in rivista - Articolo scientifico
Pd-catalysed, stereoselective, amination
English
mar-2003
7
2
209
213
none
Allegretti, M., Anacardio, R., Cesta, M., Curti, R., Mantovanini, M., Nano, G., et al. (2003). A practical synthesis of 7-azaindolylcarboxy-endo-tropanamide (DF 1012). ORGANIC PROCESS RESEARCH & DEVELOPMENT, 7(2), 209-213 [10.1021/op025570t].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/1240
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