轻松合成6-芳基-5 H -8-oxa-4 b,7-二氮杂苯并[ a ] azulen-9-one衍生物,新的三环杂环
摘要:
8-Oxa- 4b,7-二氮杂-苯并[ a ] azulene-9-one系统,通过简单方便的合成序列设计了新的三环杂环骨架。它的6-芳基衍生物是从吲哚-2-羧酸乙酯开始合成的。不同取代的苯甲酰溴与吲哚-2-羧酸乙酯反应,将所得的N-取代的吲哚-2-羧酸酯用羟胺盐酸盐处理,得到相应的肟,随后进行酯水解,然后进行脱水环化,得到所需化合物5g。
8-Oxa-4b,7-diaza-benzo[a]azulene-9-one system, a newtricyclic heterocyclic framework is designed through a simple and convenient synthetic sequence. Its 6-aryl derivatives are synthesized starting from ethyl indole-2-carboxylate. Reaction of differently substituted phenacyl bromides with ethyl indole-2-carboxylate, treatment of the resultant N-substituted indole-2-carboxylates with hydroxylamine hydrochloride
8-Oxa- 4b,7-二氮杂-苯并[ a ] azulene-9-one系统,通过简单方便的合成序列设计了新的三环杂环骨架。它的6-芳基衍生物是从吲哚-2-羧酸乙酯开始合成的。不同取代的苯甲酰溴与吲哚-2-羧酸乙酯反应,将所得的N-取代的吲哚-2-羧酸酯用羟胺盐酸盐处理,得到相应的肟,随后进行酯水解,然后进行脱水环化,得到所需化合物5g。
Microwave-assisted synthesis of fused tricyclic pyrazino[1,2-a]indole derivatives
作者:Raghunath Toche、Sunil Chavan、Ravindra Janrao
DOI:10.1007/s00706-014-1216-7
日期:2014.9
A microwave-assisted expedient route for the synthesis of novel 3-phenylpyrazino[1,2-a]indol-1(2H)-one derivatives is reported. The method has advantages such as accelerated reaction rate, excellent yields, simplicity of operation, and is eco-friendly. Microwave heating of ammonium acetate generates the NH3 nucleophile required for the cyclization reaction and acetic acid.
Expedient Synthesis of 6-Aryl Derivatives of 3,4-Dihydro-1,4,4a,6a-tetraaza-benzo[<i>a</i>]fluoren-2-one: A New Heterocyclic Framework
3,4-Dihydro-1,4,4a,6a-tetraaza-benzo[a]fluoren-2-one, a new tetracyclic heterocyclic framework, is designed through a simple and convenient synthetic sequence. Its 6-aryl derivatives are synthesized starting from 1H-indole-2-carboxylic acid. The reaction of differently substituted phenacyl bromides with 1H-indole-2-carboxylic acid and POCl3-mediated cyclization of the resultant 1H-indole-2-carboxylic acid phenacyl ester provided 2-oxa-4a-aza-fluoren-1-one, and its sequential reaction with hydrazine and 2-chloro-acetamide furnished the desired new heterocyclic compounds 7a-f.
Pyrrole- and indole-containing tranylcypromine derivatives as novel lysine-specific demethylase 1 inhibitors active on cancer cells
作者:Veronica Rodriguez、Sergio Valente、Stefano Rovida、Dante Rotili、Giulia Stazi、Alessia Lucidi、Giuseppe Ciossani、Andrea Mattevi、Oronza A. Botrugno、Paola Dessanti、Ciro Mercurio、Paola Vianello、Saverio Minucci、Mario Varasi、Antonello Mai
DOI:10.1039/c4md00507d
日期:——
On the basis of previous research showing the capability of N-carbobenzyloxy-(Z-)amino acid-tranylcypromine (-TCPA) derivatives to inhibit LSD1, we inserted at the 4-amino-TCPA moiety first a Z-Pro (9) and a Z-Gly (10) residue and then, after the encouraging data obtained for 9, a pyrrole and an indole ring in which the relative N1 position carried a acetophenone, a N-phenyl/benzylacetamide, or a Z