Starting from a series of 6-acetyl-7-(2-dimethylaminovinyl)pyrazolo[1,5-alpyrimidines (2a-g), several derivatives of the pyrazolo[5',1':2,3]pyrimido[5,4-d][1,2-]diazepine system (3a-g) were obtained by reaction with hydrazine hydrate. Some compounds were finally alkylated at N -8 position.
8H-PYRAZOLO[5',1':2,3]PYRIMIDO[5,4-D][1,2]DIAZEPINE. A NEW TRICYCLIC SYSTEM / F. BRUNI; B. COSIMELLI; A. COSTANZO; G. GUERRINI; S. SELLERI. - In: HETEROCYCLES. - ISSN 0385-5414. - STAMPA. - 36:(1993), pp. 87-99.
8H-PYRAZOLO[5',1':2,3]PYRIMIDO[5,4-D][1,2]DIAZEPINE. A NEW TRICYCLIC SYSTEM.
BRUNI, FABRIZIO;COSTANZO, ANNARELLA;GUERRINI, GABRIELLA;SELLERI, SILVIA
1993
Abstract
Starting from a series of 6-acetyl-7-(2-dimethylaminovinyl)pyrazolo[1,5-alpyrimidines (2a-g), several derivatives of the pyrazolo[5',1':2,3]pyrimido[5,4-d][1,2-]diazepine system (3a-g) were obtained by reaction with hydrazine hydrate. Some compounds were finally alkylated at N -8 position.
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