2005 Multi-membered N-heterocycles R 0690 A Novel Approach for the Synthesis of 5-Methoxycarbonyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one-N4-oxides from N-Chloroacetylisatins. — The title 03- 161 compounds (VIII) are synthesized via intramolecular cyclization from precursors (VI) in good yields. Compounds (VI) are synthesized by two different methods, but with similar yields. — (SIROHI, R.; SINGH, A.; SHASTRI, S.; KISHORE*, D.; J. Indian Chem. Soc. 81 (2004) 3, 254-257; Dep. Chem., Rajasthan, Banasthali Vidyapith 304 022, India; Eng.) — C. Oppel
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