PREPARATION PROCESS OF SUBSTITUTED 2H-PYRAN-2,6(3H)-DIONE DERIVATIVES
摘要
<p>Substituted 2H-pyran-2,6(3H)-dione derivatives useful in the treatment of allergic conditions are prepared by reaction of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one with an appropriate aniline.</p>
