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Paper | Special issue | Vol 40, No. 2, 1995, pp.717-727
Published online, 1st January, 1970
DOI: 10.3987/COM-94-S58
Syntheses of Racemic and Enantiomeric (S)-(+)-4,5,6,7-Tetrahydro-5-methyl-imidazo[4,5,1-jk][1,4]benzodiazepin-2(1H)-one Derivatives

Hans Rudolf Pfaendler and Frank Weisner

*Institute of Organic Chemistry, University of Munich, Karlstrasse 23, D-80333, München, Germany

Abstract

Racemic and enantiomeric (S)-(+)-4,5,6,7-tetrahydro-5-methylimidazo[4,5,1-jk][1,4]benzodiazepin-2(1H)-one derivatives were prepared using free amino acids and 3-nitroisatoic anhydride. Simultaneous reduction of two amide functions was efficiently achieved using diborane.