Ester inhibitors

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 207/337 (2006.01) A61K 31/34 (2006.01) A61K 31/38 (2006.01) A61K 31/395 (2006.01) C07D 209/24 (2006.01) C07D 213/55 (2006.01) C07D 231/12 (2006.01) C07D 233/58 (2006.01) C07D 307/54 (2006.01) C07D 307/80 (2006.01) C07D 333/24 (2006.01) C07D 333/60 (2006.01)

Patent

CA 2054953

ABSTRACT 2-Heteroaromatic alkanoate esters of the formula: Image wherein: R1 and R2, which may be the same or different, are selected from the group consisting of hydrogen, alkyl of 1 to 4 carbons, cycloalkyl of 3 to 6 carbons or together represent a methylene group -(CH2)n- where n is a whole number of 1 to 6, provided that R1 and R2 are not both hydrogen; Ar is optionally substituted phenyl; and Het is a heterocyclic ring containing one or more N, S or O atoms in the ring; are useful as inhibitors of human leukocyte or neutrophil elastase and may be used for the treatment of emphysema, inflammatory diseases, dermatitis or ischemia/reperfusion injury.

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