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AM-1221 is a drug that acts as a potent and selective agonist for the cannabinoid receptor CB2, with a Ki of 0.28nM at CB2 and 52.3nM at the CB1 receptor, giving it around 180x selectivity for CB2. The 2-methyl and 6-nitro groups on the indole ring both tend to increase CB2 affinity while generally reducing affinity at CB1, explaining the high CB2 selectivity of AM-1221. However despite this relatively high selectivity for CB2, its CB1 affinity is still too strong to make it useful as a truly selective CB2 agonist, so the related compound AM-1241 is generally preferred for research purposes. ==See also== * AM-630 * AM-1220 * AM-1235 * AM-2233 * UR-144 * N-(S)-Fenchyl-1-(2-morpholinoethyl)-7-methoxyindole-3-carboxamide 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「AM-1221」の詳細全文を読む スポンサード リンク
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