Помогите ознакомиться со статьей:
Coburn,R.A.; Glennon,R.A.; "Mesoionic purinone analogs IV: Synthesis and in vitro antibacterial properties of mesoionic thiazolo[3,2-a]pyrimidin-5,7-diones and mesoionic 1,3,4-thiadiazolo[3,2-a]pyrimidin-5,7-diones (pages 1785–1789)"; Journal of Pharmaceutical Sciences; vol. 62; nb. 11; (1973); стp. 1785-1789.
- DOI:
http://dx.doi.org/10.1002/jps.2600621110
