作者:Domnic H Martyres、Jack E Baldwin、Robert M Adlington、Victor Lee、Mike R Probert、David J Watkin
DOI:10.1016/s0040-4020(01)00430-6
日期:2001.6
Synthesis of (1SR, 4SR, 5SR, 7RS)-7-(tert-butoxycarbonylamino)-2-thiabicyclo[3.2.0]heptan-6-one-4-carboxylic acid ethyl ester, a novel cyclobutanone analogue of a β-lactam antibiotic is described. This was achieved by [2+2] cycloaddition of a 2,3-dihydrothiophene with dichloroketene, followed by conversion to a cyclobutanol and use of an intramolecular nitrene insertion strategy to install nitrogen
(1 SR,4 SR,5 SR,7 RS)-7-(叔丁氧羰基氨基)-2-噻双环[3.2.0]庚-6-6--4-羧酸乙酯的合成,一种新型的环丁酮类似物描述了一种β-内酰胺抗生素。这是通过2,3-二氢噻吩与二氯乙烯的[2 + 2]环加成反应,然后转化为环丁醇,并使用分子内的氮烯插入策略通过内部立体化学在C-7处安装氮官能团而实现的。