A new entry to pyrazolo[4,3-<i>e</i>][1,4]diazepines. Facile synthesis of pyrazolo [4,3-<i>e</i>][1,4]diazepin-5,8-diones, 5,6,8-triones and pyrazolo[4,3-<i>e</i>]pyrrolo-[1,2-<i>a</i>][1,4]diazepin-5,10-diones
作者:Nalla Ram Reddy、Ghanta Mahesh Reddy、Padi Pratap Reddy
DOI:10.1002/jhet.5570420429
日期:2005.5
A facile approach to pyrazolo[4,3-e][1,4]diazepin-5,8-diones and pyrazolo[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.
吡唑并[4,3- e ] [1,4] diazepin-5,8-diones和吡唑并[4,3- e ] pyrrolo [1,2- a ] [1,4] -diazepin-5的简便方法据报道,有10-二酮。策略涉及在预先形成的吡唑环上构建二氮杂skeleton骨架时,将α-氨基酸用作三个原子的片段。