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- Publications
- Influence
Two New Cytotoxic Candidaspongiolides from an Indonesian Sponge
- A. Trianto, I. Hermawan, Toshimasa Suzuka, J. Tanaka
- Medicine, Biology
- ISRN pharmaceutics
- 18 July 2011
Marine sponges have been recognized as potentially rich sources of various bioactive molecules. In our continuing search for new secondary metabolites from Indonesian marine invertebrates, we… Expand
Constituents from the fruits of Messerschmidia argentea (4)
- K. Ogihara, Mariko Kuwae, Toshimasa Suzuka
- 1 March 2012
- 2
- 1
Glucosides from the leaves of Cynanchum liukiuense (2)
- K. Ogihara, Ryouko Chinen, +6 authors 與儀 誠一
- Biology
- 1 March 2010
- 1
Reusable Polymer-Supported Terpyridine Palladium Complex for Suzuki-Miyaura, Mizoroki-Heck, Sonogashira, and Tsuji-Trost Reaction in Water
- Toshimasa Suzuka, Kosuke Kimura, Takuya Nagamine
- Chemistry
- 14 March 2011
A novel heterogeneous transition-metal catalyst comprising a polymer-supported terpyridine palladium(II) complex was prepared and found to promote the Suzuki-Miyaura, Mizoroki-Heck, Sonogashira, and… Expand
Isolation of five new flavonoids from Melicope triphylla.
- M. Higa, M. Imamura, K. Ogihara, Toshimasa Suzuka
- Chemistry, Medicine
- Chemical & pharmaceutical bulletin
- 1 October 2010
Five new flavonoids, 5,8-dihydroxy-3,7-dimethoxy-3',4'-methylenedioxyflavone (1), 7-hydroxy-3,5-dimethoxy-3',4'-methylenedioxyflavone (2),… Expand
A new route for the construction of the AB-ring core of Taxol
- Yumi Shimada, M. Nakamura, +6 authors K. Kakiuchi
- Chemistry
- 10 February 2003
Abstract A new method for the construction of the AB-ring core of Taxol was developed utilizing a new skeletal transformation protocol as a pivotal step. The acid-catalyzed rearrangement of the… Expand
Isolation of four new flavonoids from Melicope triphylla.
- M. Higa, Eisaku Nakadomari, M. Imamura, K. Ogihara, Toshimasa Suzuka
- Chemistry, Medicine
- Chemical & pharmaceutical bulletin
- 8 March 2011
Four new flavonoids, 3,5-dihydroxy-7,8-dimethoxy-3',4'-methylenedioxyflavone (1), 3,5-dihydroxy-7-methoxy-3',4'-methylenedioxyflavone (2),… Expand
Trunculins X and Y from an Okinawan sponge Sigmosceptrella sp.
- Hiromi Hirade, N. J. D. Voogd, Toshimasa Suzuka, Junichi Tanaka
- Chemistry
- 16 August 2019
Abstract Two new norsesterterpenoid cyclic peroxides, trunculins X and Y, were isolated from an Okinawan sponge Sigmosceptrella sp. Their structures were determined by spectroscopic analyses on… Expand
Naphthoquinone Derivatives from Diospyros maritima.
- M. Higa, Yuji Takashima, Hiroto Yokaryo, Yuta Harie, Toshimasa Suzuka, K. Ogihara
- Chemistry, Medicine
- Chemical & pharmaceutical bulletin
- 1 August 2017
From the chloroform extract of the fresh fruits of Diospyros maritima BLUME (Ebenaceae), five new naphthoquinone derivatives, 2,7'-dimethyl-2',3-bijuglone (27), 2,7'-dimethyl-3,3'-bijuglone (28),… Expand
Recyclable Polymer-Supported Terpyridine–Palladium Complex for the Tandem Aminocarbonylation of Aryl Iodides to Primary Amides in Water Using NaN3 as Ammonia Equivalent
- Toshimasa Suzuka, Hiromu Sueyoshi, K. Ogihara
- Chemistry
- 7 April 2017
Primary aromatic amides are valuable compounds, which are generally prepared via Beckmann rearrangement of oximes and the hydration of nitriles in organic solvents. We investigated the… Expand