Synthesis of Optically Active Thromboxane A<sub>2</sub> and Leukotriene D<sub>4</sub> Receptor Antagonists
作者:Souichirou Kawazoe、Yoshinori Okamoto、Masaki Yokota、Hirokazu Kubota、Ryo Naito、Makoto Takeuchi、Shigeru Ieda、Minoru Okada、Takeshi Oriyama
DOI:10.1246/bcsj.20130261
日期:2014.1.15
Both (+)- and (−)-4-[(2-4-chlorophenylsulfonylamino}-1-3-[(E)-2-(7-chloro-2-quinolyl)-vinyl]phenyl}ethyl)thio]methyl}benzoic acid (1), Thromboxane A2 and Leukotriene D4 receptor dual antagonist were synthesized. Racemic methyl 4-([2-amino-1-(3-hydroxymethylphenyl)ethyl]thio}methyl)benzoate (2), and methyl 4-[(2-amino-1-[3-(1,3-dioxolan-2-yl)phenyl]ethyl}thio)methyl]benzoate (3) were derived from 2-(3-bromophenyl)-1,3-dioxolane (4). Compound 2 was resolved via di-p-toluoyl-d/l-tartaric acid salts to transform to (+)- and (−)-1, respectively. We also demonstrated that one optically active salt of compound 2 was converted to optically active (+)-1 without chromatography purification.
合成了两种异构体(+)和(−)-4-[(2-4-氯苯磺酰氨基}-1-3-[(E)-2-(7-氯-2-喹啉基)-乙烯基]苯基}乙基)硫]甲基}苯甲酸(1),该化合物作为血栓素A2和白三烯D4受体的双重拮抗剂。种族的甲基4-([2-氨基-1-(3-羟甲基苯基)乙基]硫}甲基)苯甲酸酯(2)和甲基4-[(2-氨基-1-[3-(1,3-二氧杂烷-2-基)苯基]乙基}硫)甲基]苯甲酸酯(3)是由2-(3-溴苯基)-1,3-二氧杂烷(4)衍生而来。化合物2通过二对甲苯基-d/l-酒石酸盐进行分解,分别转化为(+)和(−)-1。我们还证明了化合物2的一个光学活性盐可以在没有柱色谱提纯的情况下转化为光学活性的(+)-1。