139108-76-2Relevant academic research and scientific papers
An Entry into the Novel Tetracyclic System 6H-Pyridopyrazinobenzimidazole. Synthesis and Conformational Study of the 1,2,3,4,13,13a-Hexahydro-3,3-ethylenedioxy and 3-Ketone Derivatives
Compernolle, Frans,Saleh, M.-Ashty,Toppet, Suzanne,Buysser, Wim De,Hoornaert, Georges
, p. 1965 - 1969 (2007/10/02)
The synthesis of the tetracyclic title compounds, acetal 5 and ketone 6, is presented.The key step, formation of the imidazole ring to give compound 5, involved the acid catalysed dehydration of the 2-(o-aminophenyl)lactam 7b.This was generated from lacta
