Synthesis and Pharmacological Activity of 4-Amino-5-chloro-2-methoxy-N-[(2S,4S)-1-ethyl-2-hydroxymethyl-4-pyrrolidinyl]benzamide (TKS159) and Its Optical Isomers.
作者:Toshiharu YANAGI、Akihiko KITAJIMA、Kinsei ANZAI、Kazuya KODAMA、Jun-ichi MIZOGUCHI、Hiromichi FUJIWARA、Hideyo SAKIYAMA、Osamu KAMODA、Chiaki KAMEI
DOI:10.1248/cpb.47.1650
日期:——
derivatives, four optical isomers, (2S,4S)-1, (2S,4R)-25, (2R,4S)-26 and (2R,4R)-27, showed a relatively potent affinity for 5-hydroxytryptamine 4 (5-HT4) receptors in a radioligand binding assay ([3H]GR113808). The activities of 25-27 were less effective than that of 1 for the gastric emptying of a phenol red semisolid meal in rats. All this suggests that the most potent of the isomers was 4-amino-5-chloro-2-methoxy-N-[(2S
4-氨基-5-氯-2-甲氧基-N-(1-乙基-2-羟甲基-4-吡咯烷基)苯甲酰胺中的四个旋光异构体(2S,4S)-1(TKS159),(2S,4R) -25,(2R,4S)-26和(2R,4R)-27由旋光的4-氨基-1-乙基-2-羟甲基吡咯烷二对甲苯磺酸酯[(2S,4S)-14,( 2S,4R)-17,(2R,4S)-20和(2R,4R)-23]。(2S,4S)-14,(2S,4R)-17,(2R,4S)-20和(2R,4R)-23的必需品是从市售反式4-羟基-L-脯氨酸制备的。(2S,4S)-1(TKS159),(2S,4R)-25,(2R,4S)-26和(2R,4R)-27的绝对构型被确定。在苯甲酰胺衍生物中,四种旋光异构体(2S,4S)-1,(2S,4R)-25,(2R,4S)-26和(2R,4R)-27对5-羟色胺显示出相对强的亲和力放射性配体结合测定([3H] GR113808