-2327α-Methoxy-2-[(substituted)methylene]cephem Sulfones as Inhibitors of Human Leukocyte Elastase and Thrombin.-A series of title methylene-substituted cephem sulfones (III) is prepared as a mixture of E/Z-isomers by BuLi-mediated coupling of cephem sulfones (I) with hetaryl aldehydes (yields given in g). It is shown that the acetoxymethyl-substituted cephem derivatives are good elastase inhibitors independent on the double bond geometry or the nature of hetaryl substituent. Additionally, they possess good thrombin inhibiting activity. -(REDDY, ANDHE V. NARENDER; FIAKPUI, CHARLES Y.; CZAJKOWSKI, DAVID P.; KALETA, JADWIGA; MICETICH, RONALD G.; MAITI, SAMARENDRA N.; Khim. Geterotsikl. Soedin. (1998) 11, 1510-1516; SynPhar Lab. Inc., Edmonton, Alberta T6E 5V2, Can.; EN)