Synthesis and analysis of the quality of the substance of 7,8-dihydro-3,7,7-trimethyl-4-styryl-2H-pyrazolo[3,4-b]quinolin-5(4H,6H,9H)-one – a new biologically active compound with complex antidiabetic action. Khark. Univ. Bull. Chem. Ser. 2017;(29):53-60. doi:10.26565/2220-637X-2017-29-05