Structure-activity relationships of 8-cycloalkyl-1,3-dipropylxanthines as antagonists of adenosine receptors
作者:T. Katsushima、L. Nieves、J. N. Wells
DOI:10.1021/jm00169a012
日期:1990.7
least 1000-fold more potent as an antagonist of A1 than of A2 adenosine receptors. While most substitutions on the 8-cycloalkyl moiety caused decreased potency to inhibit both A1 and A2 adenosine receptors, 8-[trans-4-(acetamidomethyl)cyclohexyl]-1,3-dipropylxanthine was nearly equipotent as an antagonist of the two receptors and appeared to be the most potent antagonist of A2 adenosine receptors reported
8-取代的黄嘌呤目前代表最有效的腺苷-受体拮抗剂。制备了一系列8-取代的1,3-二丙基黄嘌呤,并确定了它们分别作为人血小板和大鼠脂肪细胞的A1和A2腺苷受体拮抗剂的效力。没有研究药物能像A1腺苷受体拮抗剂那样与8-环戊基-1,3-二丙基黄嘌呤一样有效,但是8-(2-甲基环丙基)-1,3-二丙基黄嘌呤比A1腺苷受体的效力至少强1000倍。 A1比A2的腺苷受体高。虽然8-环烷基部分上的大多数取代都导致抑制A1和A2腺苷受体,8- [反式-4-(乙酰氨基甲基)环己基] -1的效力降低,