通过S N 2→Thorpe–Ziegler→Thorpe–Guareschi多米诺反应合成取代的噻唑并[4,5- b ]吡啶和其他环状杂环
摘要:
一种新的组合方法,用于制备取代的噻唑并[4,5- b ]吡啶,该方法在新的S N 2中利用氰基乙酰胺,杂枯草酮(异硫氰酸盐,二硫化碳)和-4-氯乙酰乙酸乙酯→Thorpe–Ziegler→Thorpe–瓜雷基多米诺骨牌反应已经开发出来。然后将获得的噻唑并[4,5- b ]吡啶与醛和丙二腈一起用于另一个Knoevenagel反应→Michael反应→杂-索普-齐格勒多米诺反应,用于合成取代的4,6-二氢-5 H-吡喃并[ 2,3- d ]噻唑并[4,5- b ]吡啶。
The emergence of multidrug-resistant pathogens necessitates the search for new antibiotics acting on previously unexplored targets. Nicotinate mononucleotide adenylyltransferase of the NadD family, an essential enzyme of NAD biosynthesis in most bacteria, was selected as a target for structure-based inhibitor development. To this end, the inventors have identified small molecule compounds that inhibit bacterial target enzymes by interacting with a novel inhibitory binding site on the enzyme while having no effect on functionally equivalent human enzymes.