Abstract
The condensation of 3-oxocaprolactam piperidine enamine with 2,6-dibromoquinone and quinone gave 6,8-dibromo-7-hydroxy- and 7-hydroxy-10a-piperidine-2,3,4,5,5a-hexahydro-1H-benzofuro[2,3-c]azepine-1-one adducts, the acid treatment of which afforded novel 9-hydroxy-1,2,3,4-tetrahydro-5H-chromene[3,4-b]pyridine-5-one derivatives.
References
1.
10.1070/MC2002v012n01ABEH001525_bib1
Allen
1973
2.
10.1070/MC2002v012n01ABEH001525_bib2
Granik
Khim.- Pharm. Zh.,
1993
3.
Kuckländer U., Kuna K., Schneider B.
Archiv der Pharmazie,
1993
4.
Kuckl�nder U., Kuna K., Schneider B., Steigel A., Mayer B.
Journal für praktische Chemie,
1993
5.
Kuckländer U., Schneider B.
Chemische Berichte,
1986
6.
10.1070/MC2002v012n01ABEH001525_bib6
Glushkov
USSR Inventor's Certificate no. 239963 Bull. Izobr.,
1969
7.
Cassis R., Tapia R., Valderrama J.A.
Journal of Heterocyclic Chemistry,
1984
8.
Barrios L., Ruiz V.M., Tapia R., Valderrama J., Vega J.C.
Chemistry Letters,
1980
9.
Mukhanova T.I., Panisheva E.K., Lyubchanskaya V.M., Alekseeva L.M., Sheinker Y.N., Granik V.G.
Tetrahedron,
1997