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A new synthesis of indoloquinolizines by Pictet-Spengler reaction of tryptamine type 1,2-dihydropyridines utilizing sec-nitrodienamine
Koike,Shinohara,Tobinaga,Takeuchi
, p. 1898 - 1902 (2000)
The Pictet-Spengler reaction of tryptamine type 1,2-dihydropyridine 5c derived from the cycloaddition of the sec-nitrodienamine 3c with acetaldehyde afforded the indoloquinolizine derivatives 6 and 7.
