title: Gold(III) Salen complex-catalyzed synthesis of propargylamines via a three-component coupling reaction.
abstract: [reaction: see text] Propargylamines have been synthesized by a gold(III) salen complex-catalyzed three-component coupling reaction of aldehydes, amines, and alkynes in water in excellent yields at 40 degrees C. With chiral prolinol derivatives as the amine component, excellent diastereoselectivities (up to 99:1) have been attained. This coupling reaction has been applied to the synthesis of propargylamine-modified artemisinin derivatives with the delicate endoperoxide moieties remaining intact. Cytotoxicities with IC(50) values up to 1.1 microM against a human hepatocellular carcinoma cell line (HepG2) were exhibited by these artemisinin derivatives.
authors.affiliation: Department of Chemistry and Open Laboratory of Chemical Biology of the Institute of Molecular Technology for Drug Discovery and Synthesis, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
authors.forename: Vanessa Kar-Yan
authors.initials: VK
authors.lastname: Lo
authors.forename: Yungen
authors.initials: Y
authors.lastname: Liu
authors.forename: Man-Kin
authors.initials: MK
authors.lastname: Wong
authors.forename: Chi-Ming
authors.initials: CM
authors.lastname: Che
mesh_terms: D037621:Artemisinins / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D002384:Catalysis; D045744:Cell Line, Tumor; D004354:Drug Screening Assays, Antitumor; D006046:Gold / Q000737:chemistry*; D006801:Humans; D020128:Inhibitory Concentration 50; D007783:Lactones / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D015394:Molecular Structure; D010293:Pargyline / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D011437:Propylamines / Q000138:chemical synthesis* / Q000737:chemistry; D012717:Sesquiterpenes / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology*; D013237:Stereoisomerism
chemical_list: D037621:Artemisinins; D007783:Lactones; D011437:Propylamines; D012717:Sesquiterpenes; C009054:propargylamine; D006046:Gold; D010293:Pargyline; C075875:artemisin