Condensed heteroaromatic ring systems. XV. Synthesis of pyranopyridinones from halopyridinecarbonitriles.
1988 ◽
Vol 36
(5)
◽
pp. 1890-1894
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1986 ◽
Vol 34
(7)
◽
pp. 2754-2759
◽
1986 ◽
Vol 34
(7)
◽
pp. 2760-2765
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