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Synthesis of halogen substituted imidazo[4,5-e][1,4]diazepine-5,8-diones. Cyclic homologs of methylxanthines

✍ Scribed by É. I. Ivanov; G. D. Kalayanov; I. M. Yaroshchenko


Publisher
Springer US
Year
1992
Tongue
English
Weight
214 KB
Volume
28
Category
Article
ISSN
0009-3122

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✍ Nalla Ram Reddy; Ghanta Mahesh Reddy; Padi Pratap Reddy 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 74 KB 👁 1 views

A facile approach to pyrazolo [4,3-e][1,4] diazepin-5,8-diones andpyrazolo[4,3-e]pyrrolo[1,2-a][1,4]diazepin-5,10-diones is reported. Strategy involved the utility of α-amino acid as a three-atom segment in the construction of diazepine skeleton on the preformed pyrazole ring.