Synthesis of imidazo[4,5-e][1,4]diazepine-8-one |
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Authors: | G. D. Kalayanov É. I. Ivanov L. V. Grishchuk |
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Affiliation: | (1) A. V. Bogatskii Physical Chemistry Institute, Academy of Sciences of Ukraine, 270080 Odessa |
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Abstract: | We have developed a method for synthesis of 1-methyl-4,5,7, 8-tetrahydro-6H-imidazo[4,5-e][1,4]diazepin-8-one. We have shown that in intramolecular cyclization of N-(2-hydroxyethyl)- or N-(2-chloroethyl)amides of 1-methyl-4-aminoimidazolyl-5-carboxylic acids it is not the corresponding tetrahydroimidazo[4,5-e][1,4]diazepin-8-ones which are formed but rather the isomeric 4-amino-5-(oxazolin-2-yl)imidazoles.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1203–1206, September, 1993. |
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