... Please enable JavaScript to use all the features on this page. Tetrahedron Letters. Volume 52, Issue 16, 20 April 2011, Pages 1866–1870. Cover image Cover image. Synthesis of 1-pyrroline 1-oxides analogous to pseudouridine. ... 24 This procedure gave 3 in a total yield of 52%. ...
![7,14-dioxa-1-azaspiro[4.2.5.2]pentadec-1-ene 1-oxide Structure](https://image.chemsrc.com/caspic/468/176643-32-6.png)
![2-(2,4-dimethoxypyrimidin-5-yl)-7,14-dioxa-1-azadispiro[4.2.5.2]pentadec-1-ene 1-oxide Structure](https://image.chemsrc.com/caspic/076/1017841-99-4.png)