SYNTHESIS OF PYRAZOLE ANALOGS OF ISOAPTAZEPINE

被引:4
作者
MASSA, S [1 ]
ARTICO, M [1 ]
MAI, A [1 ]
MANCUSO, A [1 ]
CORELLI, F [1 ]
机构
[1] UNIV SIENA,DIPARTIMENTO FARM CHIM BIOL,I-53100 SIENA,ITALY
关键词
D O I
10.1002/jhet.5570290729
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of the novel tetracyclic rings 5 and 6 is described starting from 4-cyano-1-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole and its 3-(1H-pyrrol-1-yl)- isomer, respectively. The pathway employed is based on a one-pot double annelation reaction involving the transformation of 13 into the required tetracyclic derivative 16. Lithium aluminum hydride/sulfuric acid reduction of the last compound furnished 5. A similar way was used for the synthesis of 6 by cyclization of 20.
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页码:1851 / 1854
页数:4
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