| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new method for producing a tetronic acid derivative spiro-condensed with a carbocyclic ring via a short step. <P>SOLUTION: In the method for producing a tetronic acid derivative spiro-condensed with a carbocyclic ring, a compound of formula (Ia), as a representative example, is produced by reacting a carbocyclic ring-containing ester derivative with sodium hydroxide and acid chloride. <P>COPYRIGHT: (C)2013,JPO&INPIT |
