A high yielding synthesis of anthranilate esters from sterically hindered alcohols
作者:David Barker、Malcolm D McLeod、Margaret A Brimble、G.Paul Savage
DOI:10.1016/s0040-4039(00)02327-3
日期:2001.2
and operationally simple synthesis of anthranilate esters derived fromprimary, secondary and tertiary alcohols is reported. Esterification of the alcohol with N-(trifluoroacetyl)anthranilic acid under Steglich conditions, followed by sodium borohydride mediated cleavage of the trifluoroacetyl group affords the anthranilate ester. This new method has application in the synthesis of the ester sidechains
Synthesis of simple analogues of methyllycaconitine—an efficient method for the preparation of the N-substituted anthranilate pharmacophore
作者:David Barker、Margaret A Brimble、Malcolm D McLeod
DOI:10.1016/j.tet.2004.05.024
日期:2004.7
The synthesis of several A and AE ring analogues of the alkaloid methyllycaconitine is reported. The key 2-(2″-methylsuccinimido)benzoate ester pharmacophore is introduced using an efficient two step procedure. Esterification of the alcohol precursors with N-(trifluoroacetyl)anthranilic acid under Steglich conditions followed by sodium borohydride mediated cleavage of the trifluoroacetyl group affords