Synthesis 2004(14): 2317-2322  
DOI: 10.1055/s-2004-831178
PAPER
© Georg Thieme Verlag Stuttgart · New York

Pyrrolo[2,1-b]thiazol-3(2H)-ones as Precursors of N-Alkyl-2-(1H-pyrrol-2-ylthio)acetamides and N-Alkyl-2-(1H-pyrrol-2-ylthio)propanamides

Anton V. Tverdokhlebov*a, Alexander P. Andrushkoa, Elizaveta V. Resnyanskaa, Andrey A. Tolmachevb
a Enamine Ltd., Alexandra Matrosova Str. 23, 01103, Kiev, Ukraine
b Kiev National Taras Shevchenko University, Volodimirska str. 62, 01033, Kiev, Ukraine
e-Mail: atver@univ.kiev.ua;
Further Information

Publication History

Received 12 May 2004
Publication Date:
17 August 2004 (online)

Abstract

6-Aryl-2,3-dihydro-3-oxopyrrolo[2,1-b]thiazole-7-carboxylic acids ethyl esters were prepared by refluxing 2-[3-(2-aryl-2-oxoethyl)-4-oxo-2-thiazolidinylidene]acetic acid ethyl esters in POCl3. An amination of the obtained pyrrolo[2,1-b]thiazole derivatives with primary aliphatic amines was found to yield N-alkyl-2-[(4-aryl-3-ethoxycarbonyl-2-pyrrolyl)thio]acetamides and -propanamides.