作者:Máté Bubenyák、Béla Noszál、Kristóf Kóczián、Mária Takács、Szabolcs Béni、István Hermecz、József Kökösi
DOI:10.1016/j.tetlet.2008.07.098
日期:2008.9
Bioisosteric replacements were accomplished by building the structural elements of piroxicam, an anti-inflammatory drug, into the pentacyclic system of rutaecarpine, a quinazolinocarboline alkaloid, in order to modify activity and selectivity on COX-isoenzymes. The pentacyclic compounds were synthesized efficiently by employing 1-oxo-9,10,11,12-tetrahydro-4H-pyrido[1,2-b]1,2-benzothiazine 5,5-dioxide
通过将吡罗昔康(一种抗炎药)的结构元素构建到芸苔芸香碱(一种喹唑啉羰基碱生物碱)的五环系统中,以改变其对COX同工酶的活性和选择性,从而实现了生物立体替代。以1-氧代-9,10,11,12-四氢-4 H-吡啶并[ 1,2- b ] 1,2-苯并噻嗪5,5-二氧化物为主要中间体有效合成五环化合物并制备通过替代路线。三环酮与芳基肼的缩合和随后的费歇尔吲哚化提供了新的杂环系统3和4的第一个代表。