Facile preparation of dehydrodigallic acid and its derivative for the synthesis of ellagitannins.
- Kazuma Shioe, Shingo Ishikura, Y. Horino, H. Abe
- ChemistryChemical and pharmaceutical bulletin
- 1 December 2013
A facile method for the synthesis of dehydrodigallic acid, which is a fundamental structure of ellagitannins, was developed and it was clarified that the suitable protection of the phenolic hydroxy groups was crucial in this reaction.
Synthesis of all-methylated isorugosin B.
- Kazuma Shioe, Y. Takeuchi, T. Harayama, H. Abe
- ChemistryChemical and pharmaceutical bulletin
- 1 March 2010
All-methylated isorugosin B was synthesized via two-step esterification between optically active valoneic acid and glucose derivatives.
Syntheses of all-methylated ellagitannin, isorugosin B and rugosin B
- Kazuma Shioe, Y. Sahara, Y. Horino, T. Harayama, Y. Takeuchi, H. Abe
- Chemistry
- 11 March 2011
Synthesis of Highly Oxygenated Biphenyl Derivative (VI) in an Optically Active Form Through Palladium-Mediated Intramolecular Biaryl Coupling Reaction.
- H. Abe, M. Arai, T. Harayama
- Chemistry
- 3 March 2009
Synthesis of highly oxygenated biphenyl derivative in an optically active form through palladium-mediated intramolecular biaryl coupling reaction
- H. Abe, M. Arai, T. Harayama
- Chemistry
- 3 September 2008
Optically active 6,6'-dihydroxymethyl-2,2'-3,3'-4,4'-hexamethoxybiphenyl (1) was prepared via the Pd-mediated biaryl coupling reaction of a phenyl benzoate derivative and the following…