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A novel series of MMP inhibitors has been identified. The compounds ar
e potent selective inhibitors of collagenase with good solubility and
oral bioavailability. One compound, designated Ro32-3555, has been sel
ected for development as a cartilage protective agent for use in the t
reatment of rheumatoid-and osteoarthritis. (C) 1997 Elsevier Science L
td.