Studies on tetrahydroisoquinolines. XXVIII Syntheses of (.+-.)-N-methyllaurotetanine, (.+-.)-cassythicine, (.+-.)-9-hydroxy-1,2,3,10-tetramethoxyaporphine, (.+-.)-dicentrine, and (.+-.)-thalicsimidine.
Flow Conditions‐Controlled Divergent Oxidative Cyclization of Reticuline‐Type Alkaloids to Aporphine and Morphinandienone Natural Products
作者:Bi Bali Judicaël Tra、Abollé Abollé、Vincent Coeffard、François‐Xavier Felpin
DOI:10.1002/ejoc.202200301
日期:2022.6.13
We describe a divergent continuous-flow approach for the biomimetic oxidative cyclization of reticuline-type alkaloids to aporphine and morphinandienone natural products using hypervalent iodine compounds.
The invention concerns novel molecules derived from noraporphine, as well as cosmetic and dermopharmaceutical compositions containing one or several of said derivatives, alone or combined with a plant extract, in particular
glaucium flavum,
and particularly preparations for reducing pigmentation, with anti-ageing effect or for slimming.