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Michiho Ito

Division of Pharmacognosy, Phytochemistry and Narcotics, National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-Ku, Kawasaki, Kanagawa, 210-9501, Japan.

2 papers in the library · 3 citations · publishing 2025-2026

Papers

Identification of two lysergic acid diethylamide analogs, 1-(3-(trimethylsilyl) propionyl) lysergic acid diethylamide (1S-LSD) and 1-(2-thienoyl)-6-allyl-nor-d-lysergic acid diethylamide (1T-AL-LAD), in paper sheet products distributed on the internet.

Forensic toxicology April 3, 2025 Rie Tanaka, Maiko Kawamura, Michiho Ito et al. 3 citations

Two new LSD analogs, 1S-LSD and 1T-AL-LAD, were identified in sheet products sold in Japan. Their structures were determined using gas chromatography-mass spectrometry, liquid chromatography-mass spectrometry, and nuclear magnetic resonance. A trace amount of iso-1S-LSD, a C8-epimerization product, was also suggested in one product. This is the first report of these compounds in sheet products in Japan. The metabolic pathways and biological activities of 1S-LSD and 1T-AL-LAD remain unexplored, and further investigation into their possible in vivo deacylation and conversion into LSD or AL-LAD is needed.

Identification and Analysis of Lysergic Acid Diethylamide Analogs, 4‐Benzoyl‐ N,N ‐Diethyl‐7‐Methyl‐4,6,6a,7,8,9‐Hexahydroindolo[4,3‐ fg ]quinoline‐9‐Carboxamide (1Bz‐LSD) and N , N ‐Diethyl‐7‐Methyl‐4‐(4‐(Trimethylsilyl)Benzoyl)‐4,6,6a,7,8,9‐Hexahydroindolo[4,3‐ fg ]quinoline‐9‐Carboxamide (1‐TMSBz‐LSD), in tablet or paper sheet products available online in Japan

Drug Testing and Analysis February 18, 2026 Rie Tanaka, Maiko Kawamura, Michiho Ito et al.

Two new lysergic acid diethylamide (LSD) analogs, 1Bz-LSD and 1-TMSBz-LSD, were identified in tablet and paper sheet products sold in Japan. Using gas chromatography-mass spectrometry, liquid chromatography-photodiode array-mass spectrometry, liquid chromatography with hybrid quadrupole time-of-flight mass spectrometry, and nuclear magnetic resonance, the structures of the compounds were determined. 1Bz-LSD was found in a tablet product, and 1-TMSBz-LSD was found in a paper sheet product. This is the first report of these specific analogs being detected in such products in Japan.