Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Akio Ejima"'
Autor:
Eiji Kumazawa, Megumi Minami, Hiroyuki Naito, Ryo Atsumi, Satoru Ohsuki, Akio Ejima, Mineko Mochizuki, Kenji Hirotani
Publikováno v:
Chemical and Pharmaceutical Bulletin. 53:153-163
A series of novel 3-[4-phenyl-1-piperazinyl]-1-[5-methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-1-trans-propenes and related compounds were synthesized and evaluated by their cytotoxic activity against several tumor cell lines in vitro and in vivo antitumor
Autor:
Eiji Kumazawa, Satoru Ohsuki, Masamichi Sugimori, Hiroyuki Naito, Ryo Atsumi, Yoshihide Nakamura, Megumi Minami, Akio Ejima, Mineko Ishii, Kenji Hirotani
Publikováno v:
Chemical and Pharmaceutical Bulletin. 50:453-462
A series of novel 3-substituted-1-[5-methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-1-trans-propenes in order to improve the in vitro and in vivo activity of our prototype 3-[4-(3-chlorophenyl)-1-piperazinyl]-1-[5-methyl-1-(2-pyrimidinyl)-4-pyrazolyl]-1-trans
Autor:
Keiki Sato, Yasuyoshi Kawato, Hirofumi Terasawa, Y. Hirota, Kouichi Uoto, Satoru Ohsuki, Masamichi Sugimori, Ikuo Mitsui, Akio Ejima
Publikováno v:
Journal of Medicinal Chemistry. 41:2308-2318
Nineteen ring A- and F-modified hexacyclic analogues of camptothecin were synthesized by Friedländer condensation of appropriately substituted bicyclic amino ketones with tricyclic ketone and were evaluated for cytotoxicity and topoisomerase I inhib
Autor:
Masamichi Sugimori, Satoru Ohsuki, Yasuhide Hirota, Eiji Kumazawa, Masashi Aonuma, Kouichi Uoto, Hirofumi Terasawa, Akio Ejima, Ikuo Mitsui, Keiki Sato
Publikováno v:
Japanese Journal of Cancer Research : Gann
CPT‐11, a semisynthetic derivative of camptothecin, exhibited strong antitumor activity against lymphoma, lung cancer, colorectal cancer, gastric cancer, ovarian cancer, and cervical cancer. CPT‐11 is a pro‐drug that is converted to an active m
Autor:
Hiroaki Tagawa, Akio Ejima, Ikuo Mitsui, K Matsumoto, M Yasuoka, Satoru Ohsuki, Masamichi Sugimori, Keiki Sato, Yasuyoshi Kawato, Kouichi Uoto
Publikováno v:
Journal of Medicinal Chemistry. 37:3033-3039
Eleven novel hexacyclic and three 7,9-disubstituted pentacyclic derivatives of camptothecin were synthesized and evaluated for in vitro cytotoxic activity against P388, HOC-21, and QG-56 and in vivo antileukemic activity against P388 in mice. Hexacyc
Autor:
Nobuhiro Ishihara, Akio Ejima, Kazuo Uenakai, Kaho Nakagawa, Hiroshi Kuga, Ikuo Mitsui, Fumio Saito, Keiki Sato
Publikováno v:
Journal of the agricultural chemical society of Japan. 67:1411-1416
コーンの水抽出物中から得られたケトール型不飽和脂肪酸の抗腫瘍活性の評価を行い以下の結果を得た. (1) In vitro試験の結果γ-ケトールはリノール酸に比べ5~10倍の活性を示し,抗腫瘍ス
Publikováno v:
ChemInform. 23
Autor:
Hirofumi Terasawa, K Matsumoto, Masamichi Sugimori, Yasuyoshi Kawato, Satoru Ohsuki, Akio Ejima, M Yasuoka, Hiroaki Tagawa
Publikováno v:
ChemInform. 25
Publikováno v:
ChemInform. 27
A new type of synthetic dual inhibitor of DNA topoisomerase I and II was explored. This series of compounds shows high antineoplastic activities against cancer cells, but in vivo activity against P388 was not as high as in vitro activities.
Autor:
S. C. Burford, Kenji Hirotani, Tamotsu Miwa, Kei-ichi Kawagoe, Ikuo Mitsui, Eiji Kumazawa, Akio Ejima
Publikováno v:
ChemInform. 29