Using a variety of alpha-hydroxy hydroxamic acid derivatives, the size and
shape of the S-1' pocket for the CD23 processing metalloprotease has been e
xplored. It has been demonstrated that a P-1' 2-naphthylmethyl group occupi
es most of the available space and gives excellent selectivity against fibr
oblast collagenase (matrix metalloproteinase-1, MMP-1) and other MMPs. (C)
1999 Elsevier Science Ltd. All rights reserved.