Novel crystal of n-hydroxy-2 (s)-methyl-5-ethoxymethoxy-4(s)-[n-(4-phenoxyphenylcarbonyl)amino] pentanamide, process for their production and medicines containing the crystals as the active ingredient

摘要

The present invention relates to a novel crystal of a compound of formula (I). The present invention can provide a compound of formula (I), which is useful as a pharmaceutical (matrix metalloproteinase inhibitor) as a stable crystal which possesses a constantly the same quality.