J. Org. Chem. 2018, 83 (3), 1394–1401
DOI: 10.1021/acs.joc.7b02910
Druzhenko T.; Skalenko Y.; Samoilenko M.; Denisenko A.; Zozulya S.; Borysko P.; Sokolenko M.; Tarasov A.; Mykhailiuk P.
Intramolecular photochemical [2 + 2]-cyclization of acetophenone enamides gave 2-azabicyclo[3.2.0]heptanes, advanced building blocks for drug discovery. Synthesis of a conformationally restricted analogue of proline, 2,3-ethanoproline, was performed.