Synthesis of lactone-fused pyrroles by ruthenium-catalyzed 1,2-carbon migration-cycloisomerization
作者:Takuma Watanabe、Yuichiro Mutoh、Shinichi Saito
DOI:10.1039/c9ob02363a
日期:——
A ruthenium-catalyzed cycloisomerization of 3-amino-4-alkynyl-2H-chromen-2-ones via 1,2-carbon migration was developed. Various 1-arylchromeno[3,4-b]pyrrol-4(3H)-ones were synthesized in good to excellent yields. The reaction was applied to the formal total synthesis of marine natural products Ningalin B and Lamellarin H. The efficient synthesis of γ-butyrolactone-fused pyrrole derivatives was also
通过1,2-碳迁移,开发了钌催化的3-氨基-4-炔基-2 H-铬原子-2-酮的环异构化反应。合成了各种1-芳基色[3,4- b ]吡咯-4(3 H)-,收率良好。该反应用于海洋天然产物宁格林B和Lamellarin H的正式全合成。还实现了γ-丁内酯融合的吡咯衍生物的有效合成。
Synthesis and antiproliferative properties of 3,4-diarylpyrrole-2-carboxamides
作者:E. A. Silyanova、A. V. Samet、M. N. Semenova、V. V. Semenov
DOI:10.1007/s11172-021-3115-5
日期:2021.3
A series of 3,4-diarylpyrrole-2-carboxamides was synthesized using the Barton—Zard reaction of nitrostilbenes with ethyl isocyanoacetate in the key stage. The antiproliferative properties of these compounds were studied on a sea urchin embryo model, as well as on 60 human tumor cell lines.
Novel synthesis and cytotoxic activity of some chromeno[3,4-b]pyrrol-4(3H)-ones
作者:S. S. Soman、T. H. Thaker、R. A. Rajput
DOI:10.1007/s10593-011-0701-8
日期:2011.3
1-Methylchromeno[3,4-b]pyrrol-4(3H)-one and 1-phenylchromeno[3,4-b]pyrrol-4(3H)-one derivatives have been synthesized by cyclization of amides obtained by condensing α-halo ketones with 3-amino-chromenones, which show cytotoxic activity against lung, colon, and breast cancer cell lines.
通过将α-缩合得到的酰胺进行环化,合成了1-甲基色酚[3,4- b ]吡咯-4(3H)-one和1-苯基色酚[3,4- b ]吡咯-4(3H)-one衍生物。具有3-氨基色酮的卤代酮,对肺癌,结肠癌和乳腺癌细胞系表现出细胞毒活性。
Ruthenium-Catalyzed Cycloisomerization of 2-Alkynylanilides: Synthesis of 3-Substituted Indoles by 1,2-Carbon Migration
作者:Takuma Watanabe、Yuichiro Mutoh、Shinichi Saito
DOI:10.1021/jacs.7b04564
日期:2017.6.14
We developed ruthenium-catalyzedcycloisomerization of alkynylanilides that gave 3-substituted indoles in high yields. The reaction proceeded via the disubstituted vinylidene ruthenium complex that was formed by the 1,2-carbon migration.