V. A. Samsonov and L. B. Volodarskii. Formation of derivatives of benzofuran, indole, and cinnoline in the reaction of 7-(N-morpholinyl)-7-methyl-8a-hydroxy-4,5,8,8a-tetrahydro-7H-pyrrolo[3,2-e]-2,1,3-benzoxadiazole 6-oxide with nucleophilic reagents // Chemistry of Heterocyclic Compounds. 1998. Volume 34, Number 3, P. 271-274.
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http://dx.doi.org/10.1007/BF02290715
