Pyrazo pyridine-3-carboxylate

This tricyclic ring system was prepared from the functionalized pyrazo[l,5-n]pyridines. Thus, pyrazo[l,5-n]pyridine-3-carboxylate 462 gave 465 upon mesylation and subsequent reaction with 2-ethoxy-2-lithioxyethy-lene, whose cyclization afforded 466 (94AP435). Intramolecular aldol... 

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See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ , ]

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