Трикомпонентна циклізація як підхід до створення комбінаторної бібліотеки 2Н-спіро[хромено[2,3-с]пірол-1,3'-індолін]-2',3,9-трионів

• Date: 2020
• Main Authors: Vydzhak, Roman N., Kachaeva, Maryna V., Pilyo, Stepan G., Moskvina, Viktoriia S., Shablykina, Olga V., Kozytskiy, Andriy V., Brovarets, Volodymyr S.
• Format: Article
• Language: English
• Published: V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine 2020
• Subjects: Ізатин; трикомпонентна циклізація; 1,2-дигідрохромено[2,3-с]пірол-3,9-діони; комбінаторна бібліотека
• Online Access: https://bioorganica.com.ua/index.php/journal/article/view/5
• Journal Title: Ukrainica Bioorganica Acta

A versatile and efficient three-component cyclization of methyl 4-(o-hydroxyphenyl)-2,4-dioxobutanoates 1, N-substituted isatins 2, and primary amines 3 was explored to synthesize of 2H-spiro[chromeno[2,3-c]pyrrole-1,3'-indoline]-2',3,9-triones. We obtained a library of 122 derivatives with an indolin-2-one motif as an important structural fragment in natural alkaloids. This method is practical and useful strategy for constructing dihydrochromeno[2,3-c]pyrrole-3,9-diones. Most of the obtained products also have functional groups for easy and further diversification by classical reactions.