N‑Methyl-β-carbolinium Salts and an N‑Methylated 8‑Oxoisoguanine as Acetylcholinesterase Inhibitors from a Solitary Ascidian, Cnemidocarpa irene

• Yohei Tadokoro,
• Teruaki Nishikawa,
• Taichi Ichimori,
• Satoko Matsunaga,
• Masaki J. Fujita,
• Ryuichi Sakai

Affiliations

Yohei Tadokoro

Faculty of Fisheries Sciences, Hokkaido University Graduate School, Hakodate, Hokkaido, Japan

Teruaki Nishikawa

Faculty of Science, Toho University, Funabashi, Chiba, Japan

Taichi Ichimori

Faculty of Fisheries Sciences, Hokkaido University Graduate School, Hakodate, Hokkaido, Japan

Satoko Matsunaga

National Institute of Technology, Hakodate College, Hakodate, Hokkaido, Japan

Masaki J. Fujita

Faculty of Fisheries Sciences, Hokkaido University Graduate School, Hakodate, Hokkaido, Japan

Ryuichi Sakai

Faculty of Fisheries Sciences, Hokkaido University Graduate School, Hakodate, Hokkaido, Japan