Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Takenori Kusumi"'
Autor:
Kanami Mori, Takashi Ooi, Masanori Hiraoka, Naohiro Oka, Hideyuki Hamada, Mitsumasa Tamura, Takenori Kusumi
Publikováno v:
Marine Drugs, Vol 2, Iss 2, Pp 63-72 (2004)
Abstract: Three metabolites of fucoxanthin were isolated from a brown alga, Scytosiphon lomentaria, and the structure of a new compound was determined by NMR. The content of fucoxanthin, a biologically active carotenoid, in four edible brown algae, c
Externí odkaz:
https://doaj.org/article/c22028d2ea92493cb74a1393f18bf006
Autor:
Yan Li, Chinatsu Ohtake, Mayuno Hotta, Hidetsugu Tabata, Kiriko Hirano, Motoo Iida, Kayo Nakamura, Kosho Makino, Tetsuta Oshitari, Hideaki Natsugari, Takenori Kusumi, Hideyo Takahashi
Publikováno v:
The Journal of Organic Chemistry.
Autor:
Tetsuta Oshitari, Takenori Kusumi, Kiriko Hirano, Hidetsugu Tabata, Chinatsu Otake, Takuya Namba, Kosho Makino, Hideaki Natsugari, Hideyo Takahashi
Publikováno v:
The Journal of Organic Chemistry
The conformational properties of 2'-fluoro-substituted acetophenone derivatives were elucidated based on Hα-F and Cα-F through-space spin-spin couplings (TS-couplings), which occur between two atoms constrained at a distance smaller than the sum of
Autor:
Takenori Kusumi
Publikováno v:
Journal of Synthetic Organic Chemistry, Japan. 77:628-631
Autor:
Shugo Watabe, Mina Yasumoto-Hirose, Jun Yasumoto, Tsuyoshi Sakata, Ko Yasumoto, Kanami Mori-Yasumoto, Takenori Kusumi, Shun ichi Sato, Mitsuru Jimbo
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
Biogenic polyamines are involved in a wide range of plant cellular processes, including cell division, morphogenesis and stress responses. However, the exact roles of biogenic polyamines are not well understood. We recently reported that biogenic pol
Publikováno v:
Helvetica Chimica Acta. 99:944-960
We report the first total synthesis of the proposed structure of ardimerin, which was achieved in 14 steps starting from 2,3,4-trimethoxybenzoic acid. The key steps include the β-selective formation of the crucial C-glycoside linkage and stepwise co
Autor:
Yoshimitsu Hashimoto, Takenori Kusumi, Hiroshi Takikawa, Yuki Yoshinaga, Yui Ishikawa, Keisuke Suzuki
Publikováno v:
Bulletin of the Chemical Society of Japan. 89:941-954
Previously we developed a promising synthetic approach to complex polycyclic natural products, including aromatic polyketides derived from the type-II polyketide biosynthesis. The approach consists of three key steps; (1) cycloaddition or cycloconden
Autor:
Ko, Yasumoto, Tsuyoshi, Sakata, Jun, Yasumoto, Mina, Yasumoto-Hirose, Shun-Ichi, Sato, Kanami, Mori-Yasumoto, Mitsuru, Jimbo, Takenori, Kusumi, Shugo, Watabe
Publikováno v:
Scientific Reports
Biogenic polyamines are involved in a wide range of plant cellular processes, including cell division, morphogenesis and stress responses. However, the exact roles of biogenic polyamines are not well understood. We recently reported that biogenic pol
Autor:
Kanami Mori-Yasumoto, Motoyoshi Satake, Setsuko Sekita, Ryoko Izumoto, Yutaka Agatsuma, Hiroyuki Fuchino, Takashi Ooi, Takenori Kusumi
Publikováno v:
Bioorganic & Medicinal Chemistry. 20:5215-5219
A methanol extract of the wood of Diospyros burmanica, collected in Burma (Myanmar), was found to exhibit significant activity against Leishmania major. Subsequent chromatographically resolved fractionation led to the isolation of three novel bisnaph
Publikováno v:
Bulletin of the Chemical Society of Japan. 81:562-573
Perchloric acid treatment of sarcophytoxide, a marine cembranoid possessing an epoxide, brought about epoxide–ketone rearrangement affording ketones. When the reaction time was long (22 h), a minor...