Observation of differential reactivity of cyclic amines in S N2 and S NAr displacement reactions in the course of synthesizing C-6, C-7 substituted quinolinecarbonitrile MEK1 kinase inhibitors
We have previously reported on a series of 4-anilino-6,7-dialkoxy-3-quinolinecarbonitriles as potent inhibitors of MEK1 kinase. Herein, we describe our synthetic efforts toward a series of 4-anilino-6-alkoxy-7-amino-3-quinolinecarbonitriles. In the course of this work, we were able to rapidly constr...
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Published in | Tetrahedron letters Vol. 49; no. 1; pp. 137 - 140 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
2008
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Online Access | Get full text |
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Summary: | We have previously reported on a series of 4-anilino-6,7-dialkoxy-3-quinolinecarbonitriles as potent inhibitors of MEK1 kinase. Herein, we describe our synthetic efforts toward a series of 4-anilino-6-alkoxy-7-amino-3-quinolinecarbonitriles. In the course of this work, we were able to rapidly construct a library of 4-anilino-6-alkoxy-7-amino-3-quinolinecarbonitriles by simultaneous or sequential S
N2 (displacement) reactions on the C-6 chloroalkoxy moiety and S
NAr (addition/elimination) reactions at C-7 with nucleophilic amines. |
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ISSN: | 0040-4039 1873-3581 |
DOI: | 10.1016/j.tetlet.2007.10.151 |