The present invention relates to a compound of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are as defined above, and pharmaceutically acceptable salts and solvates thereof, that are useful, for example, as matrix metalloproteinase inhibitors. The present invention is also directed to pharmaceutical compositions comprising such compounds and methods of treatment for diseases such as osteoarthritis, rheumatoid arthritis, cancer, osteoporosis, tissue ulceration, restinosis, periodontal disease, inflammation, epidermolysis bullosa, scleritis, stroke, Alzheimer's disease, and the like, characterized by inappropriate matrix metalloproteinase activity. Processes for the synthesis of compounds of formula (I) are also disclosed.

A invenção atual relaciona-se a um composto do ## do ## STR1 da fórmula wherein R.sup.1, R.sup.2, R.sup.3 e R.sup.4 são como definidos acima, e pharmaceutically dos sais e dos solvates aceitáveis disso, que são úteis, para o exemplo, como inibidores do metalloproteinase da matriz. A invenção atual é dirigida também às composições pharmaceutical que compreendem tais compostos e métodos do tratamento para doenças tais como a osteodistrofia, o arthritis rheumatoid, o cancer, o osteoporosis, o ulceration do tecido, o restinosis, a doença peridental, o inflammation, o bullosa do epidermolysis, o scleritis, o curso, a doença de Alzheimer, e o gosto, caracterizado pela atividade imprópria do metalloproteinase da matriz. Os processos para a síntese dos compostos da fórmula (I) são divulgados também.

 
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