The target compounds 3 (C14H15NO4) and 4 (C20H17NO8) were synthesized and structurally determined by single-crystal X-ray diffraction.The crystal of 3 is in the
Three new acylhydrazones containing pyrazine ring (C12H11N5O2·CH3COOH,1;C13H13N5O·2CH3COOH,2;C13H13N5O3·C13H13N5O3,3) were synthesized and fully characterize