... XXXII to XXXVIII) were prepared from 4,4'—hexamethy1ene—bis(thiosemicarbazide) (VI) and two moles equivalents of aroyl chlorides, and 1,1'-dialkyl— or 1,1'—diaryl—6,6'-alkylene—bis( thioureas) 1) Part IV: T. Yabuuchi, M. Hisaki, and R. Kimura, Chem. Pharm. Bull. ...