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A. Khodairy 《Phosphorus, sulfur, and silicon and the related elements》2013,188(8):1893-1907
1,3-Dihydro-4-phenyl-1,5-benzodiazepin-2-one 1 a was treated with some ylidenecyanothioacetamides to give the corresponding pyrido(2,3-b)benzodiazepines 3– 6. Treatment of compound 1 a with a mixture of thiophen-2-aldehyde and thiourea or guanidine gave the corresponding 1,3-thiazino- and pyrimido(4,5-b)benzodiazepines 7 and 8. 3-Arylidene derivatives 9 a–e and 10 were synthesized. Compound 10 was subject to react with 2-(1-methylthio-1′-anilinomethylidene)malononitrile to give oxazino-benzodiazepine 11. Thieno(3,2-b)benzodiazepines 12 a,b and 13 were synthesized via the reaction of compound 1 b with sulfur and some active nitriles. [1,3-Dihydro-4-phenyl(1,5)-benzodiazepin-2-ylidene]malononitrile 15was used as synthon to obtain novel pyrido-, pyrano-, benzo-, and thienobenzodiazepines 16–20, respectively. The reaction of compound 1 b with CS 2 or PhNCS along with 1,1,3-tricyano-2-aminoprop-1-ene, 2-(1-methylthio-1′-anilinomethylidene)malononitrile, or 1,3-dibromopropane gave the corresponding polyfused benzodiazepines 21– 23, respectively. 相似文献
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