AROMATIC ESTERS OF PHENYLENEDIALKANOATES AS INHIBITORS OF HUMAN NEUTROPHIL ELASTASE

摘要

2126195 9311760 PCTABS00022 Compounds of the formulae (I, II or III) wherein: R1, R2, R3 and R4 which may be the same or different, are selected from the group consisting of hydrogen, alkyl of 1-6 carbons, cycloalkyl of 3 to 6 carbons, alkenyl of 2-6 carbons, or together represent methylene groups -(CH2)n- where n is a whole number from 1 to 6, provided that R1 and R2 or R3 and R4 are not both hydrogen.