Novel Synthetic Route of Coelenterazines -2-: Synthesis of Various Dehydrocoelenterazine Analogs
作者:Minoru Isobe、Nobuhiro Kondo、Masaki Kuse、Thumnoon Mutarapat、Nopporn Thasana
DOI:10.3987/com-05-10351
日期:——
The novel synthetic route to introduce various substituents into 5-position of coelenteramine is described. Difficulties, however, are observed in the attempted synthesis of some analogs having labile functional groups. This is due to the strong acid conc. H 2 SO 4 after Suzuki-Miyaura coupling, so that the route was limited only to the synthesis for aminopyrazines having acid-stable functional groups
描述了将各种取代基引入腔肠胺5位的新合成路线。然而,在尝试合成一些具有不稳定官能团的类似物时发现了困难。这是由于强酸浓度。Suzuki-Miyaura偶联后的H 2 SO 4 ,因此该路线仅限于合成具有酸稳定官能团的氨基吡嗪。在本报告中,我们描述了在交叉偶联前 N-甲苯磺酰基-氨基吡嗪三氟甲磺酸酯脱保护的替代成功;因此,我们以高产率获得了氨基吡嗪三氟甲磺酸盐。该化合物使我们能够合成各种腔肠素类似物。