Cyclic 2-carbonylaminoketones as inhibitors of cruzipain and other cysteine proteases
申请人:——
公开号:US20040127549A1
公开(公告)日:2004-07-01
Compounds of general formula (I), wherein R
1
, R
2
, R
3
, Y, (X)
o
, (W)
n
, (V)
m
, Z and U are as defined in the specification, are inhibitors of cruzipain and other cysteine protease inhibitors and are useful as therapeutic agents, for example in Chagas' disease, or for validating therapeutic target compounds.
1
Functionalised 2,3-dimethyl-3-aminotetrahydrofuran-4-one and N-(3-oxo-hexahydrocyclopenta[b]furan-3a-yl)acylamide based scaffolds: synthesis and cysteinyl proteinase inhibition
Application of standard methods for the preparation of amino acid alpha-diazomethylketones, through treatment of the mixed anhydride or pre-formed acyl fluorides of intermediates 12-14 with diazomethane, proved troublesome giving complex mixtures. However, the desired alpha-diazomethylketones were isolated and following a lithium chloride/acetic acid promoted insertionreaction provided scaffolds 6-8. Elaboration