Biochemical and Pharmacological Characterization of 2-(9-(2-Piperidinoethoxy)-4-oxo-4 H-pyrido[1,2-a]pyrimidin-2-yloxymethyl)-4-(1-methylethyl)-6-methoxy-1,2-benzisothiazol-3(2 H)-one-1,1-dioxide (SSR69071), a Novel, Orally Active Elastase Inhibitor