Citation: M. Bakavoli, A. Davoodnia, R. Shahnaee. Convenient synthesis of some optically active 1,4-benzodiazepin-2,5-diones[J]. Chinese Chemical Letters, ;2008, 19(1): 12-14. doi: 10.1016/j.cclet.2007.10.043 shu

Convenient synthesis of some optically active 1,4-benzodiazepin-2,5-diones

Department of Chemistry, School of Sciences, Islamic Azad University, Mashhad Branch, Iran

Received Date: 25 July 2007

Isatoic anhydride was reacted with several L-amino acids to give the corresponding (2S)-N-(o-aminobenzoyl)-2-alkyl-aminoacetic acids. The latter compounds were treated with phosphoryl chloride under reflux temperature to afford the cyclized products, (3S)-3-alkyl-3,4-dihydro-1H-1,4-benzodiazepin-2,5-diones.
- L-Amino acids,
- Benzodiazepinone,
- Optically active,
- Phosphoryl chloride,
- Heterocycles
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