Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Dhavadee Ponglux"'
Autor:
Hiromitsu Takayama, Norio Aimi, Syunji Horie, Jie Shan, Shingo Yano, Shin-Ichiro Sarai, Leonardo T. Yamamoto, Peter K.T. Pang, Kazuo Watanabe, Pavich Tongroach, Dhavadee Ponglux
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::105df42f42756fc2dce0eb4285ed892d
https://doi.org/10.1201/9781003072867-11
https://doi.org/10.1201/9781003072867-11
Autor:
Shingo Yano, Syunji Horie, Kenjiro Matsumoto, Hiromitsu Takayama, Jie Shan, Leonardo T. Yamamoto, Kazuo Watanabe, Dhavadee Ponglux, Peter K.T. Pang
Publikováno v:
Life Sciences. 78:187-194
The effect of an indole-alkaloid mitragynine isolated from the Thai medicinal herb kratom ( Mitragyna speciosa ) on neurogenic contraction of smooth muscle was studied in guinea-pig vas deferens. Mitragynine inhibited the contraction of the vas defer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5847b8649018a02af5ec9f680ba3528f
https://doi.org/10.1016/j.lfs.2005.04.042
https://doi.org/10.1016/j.lfs.2005.04.042
Autor:
Kenjiro Matsumoto, Toshihiko Murayama, Hayato Ishikawa, Norio Aimi, Hiromitsu Takayama, Syunji Horie, Fumi Koyama, Dhavadee Ponglux
Publikováno v:
Planta Medica. 71:231-236
Recently, we found that mitragynine, a major constituent of Mitragyna speciosa, has an opioid agonistic activity, but its weak potency could not explain the opium-like effect of this plant. In the present study, bioassay-guided fractionation of the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f756c0b5f61fd3e07452ddd089f2d248
https://doi.org/10.1055/s-2005-837822
https://doi.org/10.1055/s-2005-837822
Autor:
Syunji Horie, Dhavadee Ponglux, Shingo Yano, Norio Aimi, Shin-ichiro Sakai, Peter K.T. Pang, Leonardo T. Yamamoto, Jie Shan, Kazuo Watanabe, Hiromitsu Takayama
Publikováno v:
General Pharmacology: The Vascular System. 33:73-81
We have previously elucidated the opiate-like action of mitragynine, an active principle isolated from the Thai medicinal plant Mitragyna speciosa. In the present study, effects of the related compound, mitragynine pseudoindoxyl on electrically stimu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d50a526480a0c9bc4e4e6a766ce1097
https://doi.org/10.1016/s0306-3623(98)00265-1
https://doi.org/10.1016/s0306-3623(98)00265-1
Autor:
Mariko Kitajima, Norio Aimi, Shin-ichiro Sakai, Hiromitsu Takayama, Yuhko Morohoshi, Sumphan Wongseripipatana, Dhavadee Ponglux
Publikováno v:
Natural Product Letters. 5:15-20
From the leaves of Gelsemium elegans Benth. native to Thailand, two new iridoids, 7-deoxygelsemide (7) and 9-deoxygelsemide (9), were isolated as minor constituents together with known compounds, gelsemide (5) and gelsemiol (6).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab7160863def7b32f03781683aa0ba1a
https://doi.org/10.1080/10575639408043929
https://doi.org/10.1080/10575639408043929
Publikováno v:
Chemical and Pharmaceutical Bulletin. 42:1427-1431
Chemical investigation of the leaves of Rauwolfia sumatrana JACK. collected in Thailand resulted in the isolation of three new indole alkaloids, 11-methoxystrictamine (1), rausutrine (4) and rausutranine (7), along with ten known bases, harman, tetra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79d9f09abb0554e88e5b7b56f24d0cb8
https://doi.org/10.1248/cpb.42.1427
https://doi.org/10.1248/cpb.42.1427
Publikováno v:
Chemical and Pharmaceutical Bulletin. 41:2077-2086
Complete assignments of the proton and carbon signals as well as conformational analysis of eleven basic heteroyohimbine-type oxindole alkaloids were performed by using modern NMR techniques.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3b4b48919ed06d4f9147f63546f80d1
https://doi.org/10.1248/cpb.41.2077
https://doi.org/10.1248/cpb.41.2077
Publikováno v:
ChemInform. 25
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c10d8687bfc5df07999850aeef40ac5c
https://doi.org/10.1002/chin.199449257
https://doi.org/10.1002/chin.199449257
ChemInform Abstract: Novel Indole Alkaloids from the Leaves of Rauwolfia sumatrana JACK. in Thailand
Publikováno v:
ChemInform. 26
Chemical investigation of the leaves of Rauwolfia sumatrana JACK. collected in Thailand resulted in the isolation of three new indole alkaloids, 11-methoxystrictamine (1), rausutrine (4) and rausutranine (7), along with ten known bases, harman, tetra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aec0928b92a4874398985c5063522ec5
https://doi.org/10.1002/chin.199511264
https://doi.org/10.1002/chin.199511264
Autor:
Shin-ichiro Sakai, Hiromitsu Takayama, Yuhko Miyabe, Sanan Subhadhirasakul, Norio Aimi, Dhavadee Ponglux
Publikováno v:
ChemInform. 26
Two new corymine-related indole alkaloids, Na-demethylcorymine (2) and Na-demethyldeformylcorymine (4), were isolated from the leaves of Hunteria zeylanica native to Thailand. Their structures were determined by spectroscopic analysis and chemical co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fd264deeec38067e84cd0258952f2ba
https://doi.org/10.1002/chin.199535266
https://doi.org/10.1002/chin.199535266