Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1372967 | Bioorganic & Medicinal Chemistry Letters | 2011 | 4 Pages |
Abstract
The observation that 17-cyclopropylmethylmorphinan derivatives without the 4,5-epoxy ring showed more κ selectivity than those with a 4,5-epoxy ring led us to develop a working hypothesis: the position of the plane composed of the A and B rings would influence the opioid receptor type selectivity and that the decrease in the torsion angle C11–C12–C13–C14 could improve the κ selectivity. Consistent with our hypothesis, KNT-42 with an N-cyclopropylmethyl propellane structure, whose A and B rings were fixed in a torsion angle of approximately 0°, showed κ selective agonist activity.
Graphical abstractPropellane derivative KNT-42 showed rather κ selective agonist activity.Figure optionsDownload full-size imageDownload as PowerPoint slide
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Naoshi Yamamoto, Hideaki Fujii, Toru Nemoto, Ryo Nakajima, Shinobu Momen, Naoki Izumimoto, Ko Hasebe, Hidenori Mochizuki, Hiroshi Nagase,