Heterocyclic analogs of pleiadiene. 52. Intramolecular C-acylation of perimidines and perimidones. synthesis of a new heterocyclic system — 3,4,5,6-tetrahydropyrido [3,2,1-k,l]perimidine

Intramolecular C-acylation in the 9 position of -(1-perimidinyl)- and -(1-perimidonyl)propionic acids and cyanoethylation of perimidines and perimidones were studied. Derivatives of a new bridged system, viz., 3,4,5,6-tetrahydropyrido [3,2,1-k,l]perimidine, were synthesized for the first time.See [1] for communication 51.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 973–979, July, 1981.