Tandem Aza-Michael-Condensation-Aldol Cyclization Reaction: Approach to the Construction of DE Synthon of (±)-Camptothecin

Autor: Uttam R. Kalkote, Subhash P. Chavan, Abasaheb N. Dhawane
Rok vydání: 2008
Předmět:
Zdroj: Synlett. 2008:2781-2784
ISSN: 1437-2096
0936-5214
DOI: 10.1055/s-0028-1083539
Popis: An efficient synthesis of the DE ring of camptothecin, employing a Reformatsky and a tandem one-pot, three-step trans- formation involving aza-Michael reaction, condensation with ethyl malonyl chloride followed by intramolecular 'aldol' reaction to fur- nish the dihydropyridone derivative from commercially available starting materials, has been achieved.
Databáze: OpenAIRE