An efficient synthesis of N1-substituted 2,5-dioxo-1,2,5,6,7,8-hexahydro-3-quinolinecarboxamide via enolate salts
摘要:
Various 2-(2-cyano-2-carbamoyl-1-ethenyl)-5,5-dimethyl-3-oxo-1-cyclohexen-1-olates substituted in the amide group with dialkylammonium or sodium cations were prepared via reactions of N-substituted cyanoacetamides with dimedone-DMFDMA adduct by a one-pot, two-step protocol. The salts obtained were used in reactions with N-nucleophiles for further synthesis of the N1-substituted 2,5-dioxo- 1,2,5,6,7,8-hexahydro-3-quinolinecarboxamides that are analogues of well-known pharmaceuticals. The structure of the salts and the N1-substituted 2,5-dioxo-1,2,5,6,7,8-hexahydro-3-quinolinecarboxamides was established by means of spectroscopic and X-ray diffraction studies. (C) 2008 Elsevier Ltd. All rights reserved.
A compound represented by general formula (I) has a strong Axl inhibitory activity by introducing a distinctive bicyclic structure in which a saturated carbon ring is fused to a pyridone ring, and can be a therapeutic agent for Axl-related diseases, for example, cancer such as acute myeloid leukemia, melanoma, breast cancer, pancreatic cancer, and glioma, kidney diseases, immune system diseases, and circulatory system diseases.
An efficient synthesis of N1-substituted 2,5-dioxo-1,2,5,6,7,8-hexahydro-3-quinolinecarboxamide via enolate salts
作者:Sergey A. Yermolayev、Nikolay Yu. Gorobets、Elena V. Lukinova、Oleg V. Shishkin、Svetlana V. Shishkina、Sergey M. Desenko
DOI:10.1016/j.tet.2008.02.095
日期:2008.5
Various 2-(2-cyano-2-carbamoyl-1-ethenyl)-5,5-dimethyl-3-oxo-1-cyclohexen-1-olates substituted in the amide group with dialkylammonium or sodium cations were prepared via reactions of N-substituted cyanoacetamides with dimedone-DMFDMA adduct by a one-pot, two-step protocol. The salts obtained were used in reactions with N-nucleophiles for further synthesis of the N1-substituted 2,5-dioxo- 1,2,5,6,7,8-hexahydro-3-quinolinecarboxamides that are analogues of well-known pharmaceuticals. The structure of the salts and the N1-substituted 2,5-dioxo-1,2,5,6,7,8-hexahydro-3-quinolinecarboxamides was established by means of spectroscopic and X-ray diffraction studies. (C) 2008 Elsevier Ltd. All rights reserved.