Total synthesis of the alpha-glucosidase inhibitors schulzeine A, B, and C and a structural revision of schulzeine A.
The enantioselective total synthesis of the potent alpha-glucosidase inhibitors schulzeine A, B, and C and a revision of the proposed C20' configuration of schulzeine A are reported. The central feature of our convergent route to this family of novel marine natural products is the preparation of the common benzo[a]quinolizidine subunit through a substrate-controlled, diastereoselective Pictet-Spengler cyclocondensation.
Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607, USA.
Edward G
EG
Bowen
Duncan J
DJ
Wardrop
D004791:Enzyme Inhibitors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D065089:Glycoside Hydrolase Inhibitors; D006575:Heterocyclic Compounds, 3-Ring / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D007769:Lactams / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D015394:Molecular Structure; D054837:Quinolizidines / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D013237:Stereoisomerism; D013463:Sulfuric Acid Esters / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology
D004791:Enzyme Inhibitors; D065089:Glycoside Hydrolase Inhibitors; D006575:Heterocyclic Compounds, 3-Ring; D007769:Lactams; D054837:Quinolizidines; D013463:Sulfuric Acid Esters; C541694:schulzeine A; C523671:schulzeine B; C523672:schulzeine C