| 摘要 |
PROBLEM TO BE SOLVED: To solve the most serious technical problem in the production of chafuroside comprising the securement of a large quantity of chafuroside, which is caused by the fact that chafuroside is a substance separated from oolong tea, and the separation of only about 800μg of the substance necessitates a large quantity of oolong tea and requires extremely difficult purification technique. SOLUTION: A large quantity of chafuroside expressed by the chemical formula shown below can be secured by developing a method for synthesizing chafuroside utilizing the induction to aβ-diketone by an acyl group introducing reaction, a flavone ring closing reaction and Mitsunobu reaction. COPYRIGHT: (C)2009,JPO&INPIT
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