Synthesis of a Novel Dual Inhibitor of Thromboxane A2 Synthetase and 5-Lipoxygenase (E3040) via the Direct Coupling Reaction of Hydroquinone with 3-Pyridinecarboxaldehyde.
作者:Yuki KOMATSU、Norio MINAMI
DOI:10.1248/cpb.43.1614
日期:——
Synthesis of a novel dual inhibitor of thromboxane A2 synthetase and 5-lipoxygenase, 5, 7-dimethyl-6-hydroxy-2-methylamino-4-(3-pyridylmethyl)benzothiazole (E3040), was accomplished via a new coupling reaction, in which a key intermediate, (3, 6-dihydroxy-2, 4-dimethylphenyl)-(3-pyridyl)methanol, was easily synthesized in a high yield from 2, 6-dimethyl-1, 4-benzohydroquinone and 3-pyridinecarboxaldehyde in 6N hydrochloric acid. The regio isomers of 3-pyridinecarboxaldehyde also gave the corresponding coupling products in high yields.
合成了一种新型的双重抑制剂, thromboxane A2 合成酶和 5-脂氧合酶的抑制剂 5, 7-二甲基-6-羟基-2-甲基氨基-4-(3-吡啶甲基)苯噻唑 (E3040),该合成通过一种新的偶联反应实现,其中一个关键中间体(3, 6-二羟基-2, 4-二甲基苯基)-(3-吡啶甲醇)可在 6N 盐酸中从 2, 6-二甲基-1, 4-苯醌和 3-吡啶甲醛高产率合成。此外,3-吡啶甲醛的区域异构体也以高产率给出了相应的偶联产物。