Presence of basic calcium phosphate in knee joints of osteoarthritis patients could be prevented by inhibiting tissue non-specific alkaline phosphatase (TNAP) activity. Levamisole or the L stereoisomer of tetramisole (a known TNAP inhibitor) has been used as a treatment for curing rheumatoid arthritis but its therapeutical use is limited due to side effects. We report the synthesis and the TNAP inhibition property of benzo [b] thiophene derivatives, ...
[Nemoto, Koji; Onozawa, Satoru; Konno, Megumi; Morohashi, Naoya; Hattori, Tetsutaro Bulletin of the Chemical Society of Japan, 2012 , vol. 85, # 3 p. 369 - 371]