Towards a Library of Chromene Cannabinoids: A Combinatorial Approach on Solid Supports
作者:Stefan Bräse、Dagmar Kapeller
DOI:10.1055/s-0030-1259300
日期:2011.1
A novel solid-phase synthesis towards classical cannabinoids is presented. Starting from immobilized salicylaldehydes the desired THC-analogous tricycles are obtained in four atom-economic steps including cleavage. The reagents of the employed reactions (domino oxa-Michael-aldol, Wittig, and Diels―Alder) can be varied easily, providing the basis for a combinatorial approach. Overall yields range from
Versatile Solid-Phase Synthesis of Chromenes Resembling Classical Cannabinoids
作者:Dagmar C. Kapeller、Stefan Bräse
DOI:10.1021/co200107s
日期:2011.9.12
A novel solid-phase approach toward classical cannabinoids is described. The desired tricyclic natural product analogues are assembled in only four atom economic steps: domino oxa-Michael-aldol condensation, Wittig reaction/enol-ether formation, Diels–Alder cycloaddition and cleavage. The synthesis is designed to allow combinatorialchemistry at several stages of the sequence. The variation of commercially