| abstract |
THE PRESENT INVENTION PROVIDES AN OXAZOLE COMPOUND REPRESENTED BY FORMULA (1 ), OR SALT THEREOF: WHEREIN R1 IS AN ARYL GROUP WHICH MAY HAVE ONE OR MORE SUBSTITUENTS; R2 IS AN ARYL GROUP OR A NITROGEN ATOM-CONTAINING HETEROCYCLIC GROUP EACH OF WHICH MAY HAVE ONE OR MORE SUBSTITUENTS; AND W IS A DIVALENT GROUP REPRESENTED BY -Y1-A1- OR -Y2-C (=0) - WHEREIN Y1 IS A GROUP SUCH AS -C (=0) -, A1 IS A GROUP SUCH AS A LOWER ALKYLENE GROUP, AND Y2 IS A GROUP SUCH AS A PIPERAZINEDIYL GROUP. THE OXAZOLE COMPOUND HAS A SPECIFIC INHIBITORY ACTION AGAINST PHOSPHODIESTERASE 4. |