AZAINDOLINE DERIVATIVES: 62.* SYNTHESIS AND TRANSFORMATIONS OF CONDENSED THREE-RING SYSTEMS THAT INCLUDE A 5-AZAINDOLINE FRAGMENT

Article abstract of DOI:10.1007/BF00503196

The reaction of 7-carbamoyl and 7-cyano-6-chloro-5-azaindolines with hydrazine leads to the formation of pyrrolo<2,3-d>pyrazolo<5,4-b>pyridine, whereas the reaction of 7-carbamoyl-5-azaindolines with dimethylformamide diethylacetal gives pyrrolo<1,2-c>pyr