пришлите, пожалуйста, статью:
Aza-Annulation of Polarized N,S- and N,N-Ketene Acetals with Itaconic Anhydride: Synthesis of Novel Functionalized 1,2,3,4-Tetrahydro-2-pyridones and Related Azabicycles.
Sriparna Chakrabarti, Kausik Panda, Nimesh C. Misra, Hiriyakkanavar Ila, Hiriyakkanavar
Synlett, 2005, 9, 1437-1441
- DOI:
http://dx.doi.org/10.1002/chin.200541149