Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Noriyuki Kogure"'
Autor:
Daichi Ito, Dan Ge, Noriyuki Kogure, Hitomi Manaka, Yusuke Terui, Hiromitsu Takayama, Robert J. Linhardt, Toshihiko Toida, Kyohei Higashi
Publikováno v:
Heliyon, Vol 6, Iss 10, Pp e05168- (2020)
Physical mixtures of cationic polymers and heparin have been developed to overcome the limitations of unfractionated heparin. In this study, we found that heparin associates with natural polyamines in water, resulting in the generation of a poly-ion
Externí odkaz:
https://doaj.org/article/812c12e1abe74ff3970ea6d46b5bbe0b
Autor:
Haruka Kawabata, Tomomi Yanagisawa, Mariko Kitajima, Taku Hirama, Hiromitsu Takayama, Noriyuki Kogure, Keigo Sato
Publikováno v:
Organic Letters. 21:7982-7986
The first asymmetric total synthesis of new biphenylquinolizidine alkaloids 4″-O-demethyllythridine and 14-epi-4″-O-demethyllythridine isolated from Heimia salicifolia was accomplished. The key steps in the synthesis were a copper(I)-catalyzed as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d30ca8327d00399264ecead249b275e
https://doi.org/10.1021/acs.orglett.9b02962
https://doi.org/10.1021/acs.orglett.9b02962
Publikováno v:
Organic Letters. 21:7134-7137
The first concise and collective asymmetric total synthesis of six 14-hydroxygelsenicine-related Gelsemium alkaloids, i.e., 14-hydroxygelsedilam, 14-acetoxygelsedilam, gelsefuranidine, gelsemolenin...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14128793b28a2015fc598d1160a97717
https://doi.org/10.1021/acs.orglett.9b02703
https://doi.org/10.1021/acs.orglett.9b02703
Autor:
Ruri Kikura-Hanajiri, Jun Ogata, Tomomi Yanagisawa, Mariko Kitajima, Hiromitsu Takayama, Yasuka Yamaguchi, Noriyuki Kogure
Publikováno v:
Tetrahedron. 75:3733-3739
Six new biphenyl quinolizidine lactone alkaloids: 14α-hydroxydecodine (1), 14β-hydroxydecodine (2), 4″-O-demethylheimidine (3), 4″-O-demethyl-9β-hydroxyvertine (4), 4″-O-demethylvertine N-oxide (5), and 4″-O-demethyl-9β-hydroxyvertine N-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f31dbfa13a48146b47aa0a9d2955bf8
https://doi.org/10.1016/j.tet.2019.05.045
https://doi.org/10.1016/j.tet.2019.05.045
Autor:
Kazuki Saito, Ryo Nakabayashi, Kei Okabe, Megumi Yoshida, Mariko Kitajima, Hiromitsu Takayama, Noriyuki Kogure
Publikováno v:
Journal of Natural Medicines. 73:602-607
One new otonecine-type pyrrolizidine alkaloid secopetasitenine (1), along with petasitenine (fukinotoxine, 2), neopetasitenine (3), and senkirkine (4), was isolated from the whole plant of Petasites japonicus. The structure of 1 was determined by spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c60ed8c1e60314a52be5cae5ba0ad886
https://doi.org/10.1007/s11418-019-01285-9
https://doi.org/10.1007/s11418-019-01285-9
Publikováno v:
Tetrahedron Letters. 60:187-190
The shortest asymmetric total synthesis of lycopodine (3) and the first asymmetric total synthesis of flabelliformine (4) were accomplished by a strategy that features a cascade cyclization of linear substrate (5) to construct tetracyclic structure (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d194a0b2e3101b2a9b8608d627f388f1
https://doi.org/10.1016/j.tetlet.2018.12.007
https://doi.org/10.1016/j.tetlet.2018.12.007
Autor:
Atsushi Saito, Le Anh Hao, Hiromitsu Takayama, Chihomi Fujita, Mariko Kitajima, Nguyen Tien Vung, Noriyuki Kogure
Publikováno v:
Tetrahedron. 104:132572
Three new monoterpenoid indole alkaloids, gelsevietmines-A, B, C (1–3), were isolated from Gelsemium elegans seeds collected in Vietnam. Their unique and highly oxidized structures were determined by spectroscopic analyses and chemical means includ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::529cd40bbf0f5a53012cecfd7acda0bc
https://doi.org/10.1016/j.tet.2021.132572
https://doi.org/10.1016/j.tet.2021.132572
Autor:
Akihiko Sakamoto, Toshihiko Toida, Koichi Takao, Mariko Kitajima, Keiko Kashiwagi, Kyohei Higashi, Kenta Watanabe, Noriyuki Kogure, Yoshiaki Sugita, Kazuei Igarashi, Yusuke Terui, Hiromitsu Takayama, Kenta Ko, Takeshi Uemura
Publikováno v:
Stroke. 49:1727-1733
Background and Purpose— We recently found that acrolein (CH 2 =CH-CHO) is more strongly involved in brain infarction compared with reactive oxygen species. In this study, we looked for acrolein scavengers with less side effects. Methods— Photoche
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92d057578d0c31251f516d57beb359cf
https://doi.org/10.1161/strokeaha.118.021755
https://doi.org/10.1161/strokeaha.118.021755
Autor:
Noriyuki Kogure
Publikováno v:
Journal of Synthetic Organic Chemistry, Japan. 76:446-449
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::483203ec6a776cfd1ba6adfbc1dac3fa
https://doi.org/10.5059/yukigoseikyokaishi.76.446
https://doi.org/10.5059/yukigoseikyokaishi.76.446
Autor:
Tomomi Yanagisawa, Yukihiro Goda, Mariko Kitajima, Mari Tsukahara, Hiromitsu Takayama, Yasushi Sugimura, Nobuo Kawahara, Yasuka Yamaguchi, Noriyuki Kogure, Ruri Kikura-Hanajiri, Osamu Iida
Publikováno v:
Tetrahedron. 74:441-452
Three new biphenyl ether quinolizidine lactone alkaloids (1–3) and 13 new biphenyl quinolizidine lactone alkaloids (4–16) were isolated from Heimia salicifolia (Lythraceae) together with seven known alkaloids. Their structures were determined by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28a301f43b3b58e4d5f1567a452afafe
https://doi.org/10.1016/j.tet.2017.12.012
https://doi.org/10.1016/j.tet.2017.12.012