Journal of Forensic Sciences
March 1, 2017
Tatsuyuki Kanamori, Tadashi Yamamuro, Kenji Kuwayama et al.
4 citations
In the study reported here, two glucuronic acid-conjugated metabolites of 4-bromo-2,5-dimethoxyphenethylamine (2C-B)-a ring-substituted psychoactive phenethylamine-were chemically synthesized for the first time and a method for analyzing them in urine was developed. β-D-Glucuronide of 4-bromo-2,5-dimethoxyphenylethylalcohol was successfully synthesized using methyl...
Biological & pharmaceutical bulletin
2016
Tatsuyuki Kanamori, Kenji Kuwayama, Kenji Tsujikawa et al.
1 citation
The urinary metabolic profiles of three hallucinogenic 2,5-dimethoxy-4-alkylthiophenethylamine analogs: 2,5-dimethoxy-4-ethylthiophenethylamine (2C-T-2), 2,5-dimethoxy-4-isopropylthiophenethylamine (2C-T-4), and 2,5-dimethoxy-4-propylthiophenethylamine (2C-T-7), were investigated in rats. For each drug, four male Sprague-Dawley rats were orally administered 10 mg/kg of 2C-T-2, 2C-T-4, or...
Journal of Forensic Sciences
2013
Tatsuyuki Kanamori, Kyoko Nagasawa, Kenji Kuwayama et al.
20 citations
The metabolites of 4-bromo-2,5-dimethoxyphenethylamine (2C-B), a psychoactive drug with hallucinogenic activity, were investigated in a urine sample from a user of 2C-B. The urine sample was deconjugated enzymatically and the metabolites were recovered by liquid-liquid extraction. The extract was analyzed by gas chromatography/mass spectrometry after derivatization, and the results were used to...
Journal of Forensic Sciences
September 1, 2011
Tatsuyuki Kanamori, Kenji Kuwayama, Kenji Tsujikawa et al.
10 citations
This article describes the synthesis and identification of urinary metabolites of 4-iodo-2,5-dimethoxyphenethylamine (2C-I), a new psychoactive drug. 2C-I hydrochloride was administered orally to male Sprague-Dawley rats, and the urinary extracts were analyzed by gas chromatography/mass spectrometry (GC/MS), then five putative 2C-I metabolites were synthesized in our laboratory. In the...
Xenobiotica
November 3, 2008
Tatsuyuki Kanamori, Kenji Kuwayama, Kenji Tsujikawa et al.
11 citations
1. The in vivo metabolism of alpha-methyltryptamine (AMT), a psychoactive tryptamine analogue, was studied in rats. 2. Male Wistar rats were administered 10 mg kg(-1) AMT orally and 24-h urine fractions were collected. After enzymatic hydrolysis of the urine sample, the metabolites were extracted by liquid-liquid extraction and analysed by gas chromatography/mass spectrometry (GC/MS). 3....
Forensic Science International
September 18, 2008
Kenji Tsujikawa, Kenji Kuwayama, Hajime Miyaguchi et al.
Two major salvinorins, salvinorin A (SalA) and salvinorin B (SalB), in three Salvia divinorum dried leaf products and nine of its "concentrated extract" products circulated in Japan were determined. These ingredients were extracted twice with acetonitrile and decolored with graphite carbon powder. SalA and SalB were confirmed by liquid chromatography-tandem mass spectrometry in product ion scan...
Forensic Science International
December 20, 2006
Kenji Tsujikawa, Hiroyuki Mohri, Kenji Kuwayama et al.
51 citations
The constituents of seven mushrooms sold as Amanita muscaria or Amanita pantherina (five A. muscaria and two A. pantherina) and four "extracts purported to contain A. muscaria" products that are currently circulated in Japan were determined. All mushroom samples were identified as A. muscaria or A. pantherina by macroscopic and microscopic observation. The dissociative constituents, ibotenic...
Forensic Science International
December 17, 2003
Kenji Tsujikawa, Tatsuyuki Kanamori, Yuko T Iwata et al.
79 citations
Morphological and toxicological analyses were performed on hallucinogenic mushrooms that are currently circulated in Japan. Scanning electron microscope (SEM) indicated a three-dimensional microstructures in the mushrooms. The complementary use of SEM with an optical microscope was effective for observing characteristic tissues, such as basidiomycetes, spores, cystidia and basidia....
Journal of Analytical Toxicology
March 1, 2002
Tatsuyuki Kanamori, Hiroyuki Inoue, Yuko T Iwata et al.
61 citations
The in vivo metabolism of 4-bromo-2,5-dimethoxyphenethylamine (2C-B), a ring-substituted psychoactive phenethylamine, in the rat was studied. Male Wistar rats were administered 10 mg/kg of 2C-B hydrochloride orally, and 24 h urine fractions were collected. After enzymatic hydrolysis of the urine samples, the metabolites were extracted by liquid-liquid extraction and analyzed by gas...