A Practical and Efficient Preparation of the Releasable Naphthosultam Side Chain of a Novel Anti-MRSA Carbapenem
作者:Ross A. Miller、Guy R. Humphrey、David R. Lieberman、Scott S. Ceglia、Derek J. Kennedy、Edward J. J. Grabowski、Paul J. Reider
DOI:10.1021/jo991490k
日期:2000.3.1
A practical large-scale synthesis of the naphthosultam-based side chain of the anti-MRSA antibiotic 1 has been achieved in 29% overall yield over seven steps from 1-methylnaphthalene. The synthesis was completed without the use of protecting groups, featuring a novel naphthosultam annelation, a chemoselective acid-catalyzed triflation, and the use of a novel naphthosultam dianion to effect functionalization
从1-甲基萘经过七个步骤,已实现了大规模合成抗-MRSA抗生素1的萘甲舒坦基侧链的方法,总收率达29%。无需使用保护基团即可完成合成,该保护基团具有新型的萘并硫酸氢呋喃脱嵌,化学选择性酸催化的三氟甲基磺酸盐化以及使用新型的萘并硫酸氢根二价阴离子通过苄基金属化作用实现功能化。