Synthesis of novel spiro[pyrazolo[4,3- d ]pyrimidinones and spiro[benzo[4,5]thieno[2,3- d ]pyrimidine-2,3′-indoline]-2′,4(3H)-diones and their evaluation for anticancer activity
efficient and novel method for the preparation of spiro[pyrazolo[4,3-d]pyrimidin]-7'(1'H)-ones by the condensation of 4-amino-1-methyl-3-propylpyrazole-5-carboxamide with ketones under mild conditions using catalytic InCl3 was reported. This method has been extended for the synthesis of novel spiro[benzo[4,5]thieno[2,3-d]pyrimidine-2,3'-indoline]-2',4(3H)-dione which are having potential applications in medicinal