A new indole alkaloid, 7-hydroxyspeciociliatine, from the fruits of Malaysian Mitragyna speciosa and its opioid agonistic activity
A new indole alkaloid, 7-hydroxyspeciociliatine, from the fruits of Malaysian Mitragyna speciosa and its opioid agonistic activity
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DOI:
10.1007/s11418-005-0001-7
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发表时间:
2006-01-01
影响因子:
3.3
通讯作者:
Takayama, Hiromitsu
中科院分区:
文献类型:
--
作者:
Kitajima, Mariko;Misawa, Kaori;Takayama, Hiromitsu
A new indole alkaloid, 7-hydroxyspeciociliatine (1), was isolated from the fruits of Malaysian Mitragyna speciosa Korth., together with 11 known indole and oxindole alkaloids (3-13). The structure of the new compound was determined by spectroscopic analysis and chemical conversion. The opioid agonistic activity of the new alkaloid was investigated in guinea-pig ileum experiments. The compound was found to have a weak stimulatory effect of mu-opioid receptors.