Substitution directe de l'azote N‐9 de la théophylline
1985
La bis (chloro-2 ethyl)amino-8 theophylline (1) se cyclise en milieu alcalin en deux imidazo-purines: une imidazo[1,2-e]purine 2A (cyclisation en N-9) et une imidazo[2,1-f]purine 2B (cyclisation en N-7). La structure de chaque compose a ete determined par spectrographie et confirmee par synthese univoque. La synthese d'une pyrrolo[2,1-f]purine, nouvel heterocycle, est decrite.
In alkaline medium, 8-(2-chloroethyl)aminotheophylline (1) cyclizes into two imidazopurines: the imidazo[1,2-e]purine (2A) (cyclization on 9-N) and the imidazo[2,1-f]purine (2B) (cyclization on 7-N). The structure of each compound was determined by an unambiguous synthesis and confirmed by spectrographic methods. Synthesis of one pyrrlo[2,1-f]purine, a novel heterocycle, is described.
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
7
References
12
Citations
NaN
KQI