e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Journal of heterocyclic chemistry
Some reactions of 1??methyl??(2??phenylethyl)??1, 2, 3, 4??tetrahydropyridines with organic azides. Synthesis of 1??methyl??(2??phenylethyl) piperidylidene??2??sulfonamides
BK Warren, EE Knaus
Index: Journal of Heterocyclic Chemistry, , vol. 24, p. 1413 - 1416
... The 1,3-dipolar cycloaddition reaction of organic azides with cyclic dienamines and enamines is an attractive method for the synthesis of pharmacologically interesting heterocycles. ... BK Warren and EE Knaus, J. Heterocyclic Chem., 19, 1259 (1982). ...