| abstract |
The present invention relates to a 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3- f ]chromene derivative, a method for synthesizing an optical isomer thereof, and an intermediate compound usable in the synthesis method. The use of the method and the intermediate compound can effectively synthesize a 3-phenyl-2,3,4,8,9,10-hexahydropyrano[2,3- f ]chromene derivative or an optical isomer thereof. |