Stark H
Institut für Pharmazie, Freie Universität Berlin, Germany.
Arch Pharm (Weinheim). 2000 Sep;333(9):315-6. doi: 10.1002/1521-4184(20009)333:9<315::aid-ardp315>3.0.co;2-m.
Cyclopropyl 4-(3-(1H-imidazol-4-yl)propyloxy)phenyl methanone (ciproxifan) is a novel reference antagonist for the histamine H3 receptor. Despite the former Mitsunobu reaction the actual key reaction for preparation based on SNAr for acylated fluoroaromatics with an additional cyclization in a one-pot procedure needs no chromatographic purification steps and results in good yields.