Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Takunobu Shibata"'
Autor:
Toshihiro Sakamoto, Hisashi Iwaasa, Minoru Moriya, Takunobu Shibata, Masato Chiba, Tomoyuki Ohe, Takehiro Fukami, Yuko Mitobe, Akio Kanatani, Alcane Ishihara, Yasuyuki Ishii, Hidefumi Kitazawa, Hirobumi Takahashi, Katsumasa Nonoshita, Yuji Haga
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 19:5436-5439
A series of trans -3-oxospiro[(aza)isobenzofuran-1(3 H ),1′-cyclohexane]-4′-carboxamide derivatives were synthesized and profiled for NPY Y5 binding affinity, brain and CSF penetrability in rats, and susceptibility to human and mouse P-glycoprote
Autor:
Tetsuya Kanno, Nagaaki Sato, Toshiyuki Takahashi, Akio Kanatani, Aya Sakuraba, Hisashi Iwaasa, Tomoko Hirohashi, Takehiro Fukami, Takunobu Shibata, Masaaki Hirose, Katsumasa Nonoshita, Yuji Haga, Junko Ito
Publikováno v:
Bioorganic & Medicinal Chemistry. 14:7501-7511
A series of phenylpiperazine derivatives were synthesized and evaluated for their neuropeptide Y (NPY) Y5 receptor antagonistic activities. The benzindane portion of 2 was replaced by 1-phenylpiperazine, resulting in novel urea derivative 3f. Subsequ
Autor:
Takunobu Shibata, Kiyoyuki Yamada, Takashi Itoh, Kozue Hayamizu, Tatsuya Fujita, Masaki Takagi, Tsuyoshi Mutou, Hideo Kigoshi, Kiyotake Suenaga, Taiji Irifune, Noboru Takada
Publikováno v:
Tetrahedron. 60:8509-8527
The bioassay-guided fractionation of the cytotoxic constituents of the Japanese sea hare Dollabella auricularia led to the isolation of aurilide ( 1 ), a 26-membered cyclodepsipeptide. The gross structure of 1 was established by spectroscopic analysi
Autor:
Takunobu Shibata, Naoko Fujino, Akane Ishihara, Hidefumi Kitazawa, Yuko Koike, Aya Sakuraba, Takehiro Fukami, Katsumasa Nonoshita, Yuji Haga, Miki Sato, Toshiyuki Takahashi, Masaaki Hirose, Nagaaki Sato, Yasuyuki Ishii, and Akio Kanatani
Publikováno v:
Journal of Medicinal Chemistry. 46:666-669
Novel arylpyrazole derivatives were synthesized and evaluated as neuropeptide Y (NPY) Y5 receptor antagonists. Compound (-)-7, which features a novel chiral 2,3-dihydro-1H-cyclopenta[a]naphthalene moiety, showed good binding affinity and antagonistic
Publikováno v:
Journal of Natural Products. 61:515-518
Aurilol (1), a novel cytotoxic bromotriterpene, was isolated from the sea hare Dolabella auricularia. The structure of 1, including the absolute stereochemistry of the five stereocenters, was determined by spectroscopic and chemical analyses. Aurilol
Autor:
Takashi Kondo, Kiyoyuki Yamada, Tsuyoshi Mutou, Makoto Ojika, Hideo Kigoshi, Takunobu Shibata
Publikováno v:
Tetrahedron Letters. 37:7299-7302
The synthesis of dolastatin G (1) and nordolastatin G (2), new cytotoxic cyclodepsipeptides from the Japanese sea hare Dolabella auricularia, was achieved enantioselectively, and the present result confirmed their stereostructures unambiguously.
Publikováno v:
Journal of the American Chemical Society. 118:1874-1880
A bioassay-directed investigation of the cytotoxic constituents of the Japanese sea hare Dolabella auricularia resulted in the isolation of two cytotoxic compounds designated dolastatin H (2) and i...
Autor:
Makoto Ojika, Takayuki Nemoto, Kiyoyuki Yamada, Masayuki Nakamura, Kimitoshi Nakane, Takunobu Shibata
Publikováno v:
ChemInform. 26
The absolute stereochemistry of dolastatin E ( 1 ), a cyclic hexapeptide isolated from the sea hare Dolabella auricularia , has been determined by a combination of the degradation experiments and total synthesis.
Publikováno v:
ChemInform. 27
Publikováno v:
ChemInform. 28