An Efficient and Scalable Synthesis of <i>tert</i>-Butyl (3a<i>R</i>,6a<i>S</i>)-5-Oxohexahydrocyclo penta[<i>c</i>]pyrrole-2(1<i>H</i>)-carboxylate: A Pharmacologically Important Intermediate
作者:Rajesh H. Bahekar、Pradip A. Jadav、Amitgiri D. Goswami、Hardik A. Shah、Bhushan N. Dave、Darshan A. Joshi、Jignesh P. Pethani、Dipam Patel、Sameer Agarwal、Ranjit C. Desai
DOI:10.1021/acs.oprd.6b00399
日期:2017.2.17
Hexahydrocyclopentapyrrolone derivatives constitute an important class of bicycles, and it represents an essential pharmacophore for diversified pharmacological activities. A highly efficient process for the synthesis of tert-butyl(3aR,6aS)-5-oxohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate 1 has been developed. The improved process involves transformation of isoindole 4 to diacid 5, using an inexpensive
六氢环戊吡咯烷酮衍生物构成一类重要的自行车,它代表着多种药理活性的必不可少的药效团。用于合成A高效处理叔丁基(3A - [R,6α小号)-5- oxohexahydrocyclopenta [ C ^ ]吡咯-2(1 ħ) -羧酸叔丁酯1已经研制成功。改进的方法涉及使用廉价的KMnO 4介导的氧化裂解作为关键步骤,将异吲哚4转化为二酸5。所开发的方法具有成本效益,高收率,千克可分级,并且在商业上可用于合成1。