Synthesis of new 1-phenylthieno[1,2,4]triazolo[4,3-a]pyrimidin-5(4H)-one derivatives
摘要:
AbstractA series of novel 1‐phenylthieno[1,2,4]triazolo[4,3‐a]pyrimidin‐5(4H)‐one derivatives 5 and 6 were synthesized by oxidative cyclization of thienopyrimidinonyl hydrazones using iodobenzene diacetate. J. Heterocyclic Chem., (2011).
衍生自取代的芳硫基脲的新型杂环:3,1-苯并噻嗪-4-酮,噻吩并[3,2- d ] [1,3]噻嗪-4-酮和1,2,4-噻二唑[2,3-]的合成a ] [3,1]苯并噻嗪-5-酮
摘要:
已经制备了一系列杂环芳基硫脲并作为闭环反应的起始原料进行了研究。据报道(通过环缩合反应)形成了几个新的3,1-苯并噻嗪-4-酮和噻吩并[3,2- d ] [1,3]噻嗪-4-酮。进行氧化环化反应生成苯并噻唑-4-羧酸甲酯(通过形成SC键)以及1,2,4-噻二唑-[2,3- a ] [3,1]苯并噻嗪-5-酮(通过形成S N键)。
A novel heterogeneous catalytic method to synthesize variousheterocycliccompounds of biological interest, aminobenzisothiazole [2a-h] and 1,3-thiazine derivatives [4, 6], using an environmentally attractive solid catalyst, zeolite, is described.
related thienothiazinones were identified as structurallynovelantagonists at adenosine receptors (ARs). 6-Methyl-2-benzoylamino-4H-3,1-benzothiazin-4-one (10d) was found to be a balanced AR antagonist with affinity for all human (h) subtypes (Ki hA1 65.6 nM; hA2A 120 nM; hA2B 360 nM; hA3 30.4 nM), while in rat (r), 10d was a highly potent A1-selective antagonist (rA1 7.7 nM; rA2A 546 nM; rA2B 679 nM, rA3
2-(酰基)氨基-4 H -3,1-苯并噻嗪-4-酮和相关的噻吩并噻嗪酮被认为是腺苷受体(ARs)上结构上新颖的拮抗剂。发现6-甲基-2-苯甲酰氨基-4 H -3,1-苯并噻嗪-4-酮(10d)是一种平衡的AR拮抗剂,对所有人类(h)亚型均具有亲和力(K i hA 1 65.6 nM; hA 2A 120 nM; hA 2B 360 nM; hA 3 30.4 nM),而在大鼠(r)中,10d是一种高效的A 1选择性拮抗剂(rA 1 7.7 nM; rA 2A 546 nM; rA 2B 679 nM,rA 3> 10000 nM)。发现2-(4-甲基苯甲酰氨基)-4 H -3,1-苯并噻嗪-4-酮(10 g)是对人A 2A(68.8 nM)和A 3 AR(23.0 nM)的有效拮抗剂,相对于其他人类AR亚型。与A 1和A 3 AR相比,A 2A和A 2B AR可以容忍庞大的2-酰基取代基。叔丁基(4-oxo-4
본 발명은 화학식 a의 화합물을 벤조일 아이소싸이오시아네이트와 반응시켜 화학식 2의 싸이오우레아 카르복실레이트 유도체를 수득하고, 수득한 화학식 2의 화합물을 염기 존재하에 고리화 반응시켜 화학식 1의 2-싸이옥소 싸이에노피리미딘-4-온 화합물을 제조하는 방법 및 이에 사용되는 중간체에 관한 것으로서, 화학식 1의 화합물은 항암제 등의 의약품 제조에 있어 유용한 중간체로 사용할 수 있다.