Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Tomoyo Hasuda"'
Publikováno v:
Results in Chemistry, Vol 5, Iss , Pp 100988- (2023)
Three fluorinated quassinoid analogues—4α-fluorobruceosin, 1α-fluorobrusatol, and 1-fluorodehydrobrusatol—were synthesized from brusatol, bruceosin, and dehydrobrusatol, respectively, by treatment with Selectfluor. These analogues were less cyt
Externí odkaz:
https://doaj.org/article/b0179b8be93c4e7fbf513f8c79c56219
Autor:
Yutaka Aoyagi, Kaori Tomita, Asumi Kobayashi, Akari Nakamura, Yuki Fujii, Momoka Yagi, Yoshimi Ichimaru, Kei Ozawa, Hyun-Sun Park, Haruhiko Fukaya, Reiko Yano, Tomoyo Hasuda, Koichi Takeya, Yukio Hitotsuyanagi, Ming-Yu Gui, Yong-Ri Jin, Xu-Wen Li
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 82:129149
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ed22e77b0d9d2da5d9538442422ba4e
https://doi.org/10.1016/j.bmcl.2023.129149
https://doi.org/10.1016/j.bmcl.2023.129149
Autor:
Miho Komine, Koichi Takeya, Tomoyo Hasuda, Masumi Odagiri, Yukio Hitotsuyanagi, Masahito Hirai, Haruhiko Fukaya
Publikováno v:
Chemistry - An Asian Journal. 14:205-215
Two RA-series bicyclic hexapeptides, RA-XXV (4) and RA-XXVI (5), which have no N-methyl group at Tyr-5, were isolated from the roots of Rubia cordifolia L. Their amino acid compositions and sequences were determined by interpretation of MS, and 1D an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b93e39f7be277c72b363287716a7ae83
https://doi.org/10.1002/asia.201801466
https://doi.org/10.1002/asia.201801466
Autor:
Koichi Takeya, T. Kobayashi, Haruhiko Fukaya, Ming-Yu Gui, Kei Ozawa, Yukio Hitotsuyanagi, Yongri Jin, Yutaka Aoyagi, Reiko Yano, Xuwen Li, Tomoyo Hasuda
Publikováno v:
Tetrahedron. 70:3030-3041
Transformation of plant-origin 7,14-dihydroxy-ent-kaurenes to ent-abietanes having a cis-fused α-methylene γ-lactones was accomplished efficiently under the Mitsunobu reaction conditions. The yields of the desired products were apparently influence
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b7de47ce550afec66e92407bde72156
https://doi.org/10.1016/j.tet.2014.02.082
https://doi.org/10.1016/j.tet.2014.02.082
Publikováno v:
Fitoterapia. 137:104256
Labisia pumila var. alata (Myrsinaceae) or “Kacip fatimah” is a famous Malay traditional herb used for the maintenance of women's health. The extracts of L.pumila displayed estrogenic activity in rats. Nonetheless, the estrogenic bioactives were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5fea44c2f719df3c013417743eb799b
https://doi.org/10.1016/j.fitote.2019.104256
https://doi.org/10.1016/j.fitote.2019.104256
Autor:
Tomoyo Hasuda, Taka-aki Hinosawa, Koichi Takeya, Akihiro Miyazawa, Yukio Hitotsuyanagi, Yoshie Nakagawa
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 23:6728-6731
An aza-cycloisodityrosine analogue of RA-VII, 3, was designed and synthesized. The key aza-cycloisodityrosine unit was prepared by copper(II)-acetate-mediated intramolecular phenylamine/arylboronic acid coupling of dipeptide followed by connection wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ee4c2c7a7f303404aa0c089889ad530
https://doi.org/10.1016/j.bmcl.2013.10.033
https://doi.org/10.1016/j.bmcl.2013.10.033
Autor:
Tomoyo Hasuda, Koichi Takeya, Norkamilah Abdullah, Yukio Hitotsuyanagi, Chee Yan Choo, Sharinah Ideris, Marc Diederich, Hamidah Sahibul-Anwar
Publikováno v:
Fitoterapia. 88:1-6
Goniothalamus macrophyllus (Blume) Hook. f. & Thoms. is a plant widely distributed in Malaysia. The aim of this study is to identify compounds from the roots of G. macrophyllus. The ground roots were extracted with aqueous methanol and partitioned se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08729736a24d515438806f6597868e06
https://doi.org/10.1016/j.fitote.2013.03.028
https://doi.org/10.1016/j.fitote.2013.03.028
Autor:
Yukio Hitotsuyanagi, Koichi Takeya, Ayana Onozaki, Ayumi Watanabe, Naoko Fujikawa, Yutaka Aoyagi, Takeshi Kinoshita, Tomoyo Hasuda, Yasunori Inaba
Publikováno v:
Journal of Natural Products. 76:1085-1090
Four new abietane diterpenoids (1-4), a new 9(10→20)-abeo-abietane diterpenoid (5), and a new sesquiterpene pyridine alkaloid (6) were isolated from the roots of Euonymus lutchuensis along with 19 known compounds. The structures of the new compound
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2591861e628ce28ca0eb4d081a935d2
https://doi.org/10.1021/np400110g
https://doi.org/10.1021/np400110g
Autor:
Haruhiko Fukaya, Tomoyo Hasuda, Jun-ichi Kusano, Ik-Hwi Kim, Koichi Takeya, Yukio Hitotsuyanagi
Publikováno v:
Phytochemistry Letters. 5:335-339
O -Seco-RA-XXIV, a new cyclic peptide, cyclo-( d -alanyl- l -glutaminyl- N , O -dimethyl- l -tyrosyl- l -alanyl- N -methyl- l -tyrosyl- N -methyl- l -tyrosyl), was isolated from the roots of Rubia cordifolia L. along with RA-XXIV. Its structure and r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40465ff1d83207267a1a0045098b1ea8
https://doi.org/10.1016/j.phytol.2012.02.014
https://doi.org/10.1016/j.phytol.2012.02.014
Publikováno v:
Hybridoma. 31:20-24
An immunoassay system was established for the estimation of the quantity of an antitumor cyclohexapeptide, deoxybouvardin (RA-V) from Bouvardia ternifolia (Cav.) Schlecht, Rubia cordifolia L., and R. akane Nakai (Rubiaceae). First, RA-V was converted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c40bc5713c511c0217baaf07ba41008b
https://doi.org/10.1089/hyb.2011.0084
https://doi.org/10.1089/hyb.2011.0084