| 20110172413 | PURIFICATION METHOD OF LACTONE COMPOUNDS CONTAINING UNSATURATED ALKYL GROUP BY EXTRACTION WITH SILVER ION SOLUTION - The present invention relates to a method for separating and purifying a lactone compound with an unsaturated alkyl group from a lactone compound with a saturated alkyl group which is an analog thereof. More specifically, the present invention relates to a method for effectively separating a lactone compound with an unsaturated alkyl group such as FK506 at high purity by extraction with a silver ion (Ag | 07-14-2011 |
