Silver-catalyzed Double Decarboxylative Radical Alkynylation/Annulation of Arylpropiolic Acids with α-keto Acids: Access to Ynones and Flavones under Mild Conditions
Ynones are privileged buildingblocks in various organic syntheses of heterocyclicderivatives due to their multifunctional nature, and flavones are an important class of natural products with a wide range of biological activities. We describe the catalytic double decarboxylative alkynylation of arylpropiolic acids with α‐keto acids. With Ag(I)/persulfate as the catalysis system, the valuable ynones
FORMYLATED XANTHOCILLIN ANALOGUES AS NEUROPROTECTIVE AGENTS
申请人:NEURON BIOPHARMA, S.A.
公开号:US20150011621A1
公开(公告)日:2015-01-08
Formylated xanthocillin analogs can be used in the treatment of neurodegenerative diseases. The analogs can be prepared synthetically, and at least some of the analogs can be obtained from a microorganism strain of the
Penicillium chrysogenum
species.
ABSTRACT An efficient [Cu]-catalyzedhomocoupling of 1,1-dibromoalk-1-enes is described for the synthesis of symmetrical 1,3-diyines. The method showed good substrate scope and amenable to aryl and heteroaryl systems. Significantly, the strategy was also successfully applied to the sequential one-pot synthesis of triazoles. GRAPHICAL ABSTRACT
Certain 4-(3-azacycloalkoxy or azacycloalkylmethoxy)benzoylbenzofurans
申请人:SmithKline Corporation
公开号:US03983245A1
公开(公告)日:1976-09-28
The compounds of this invention are substituted benzofurans and benzothiophenes having pharmacological activity. In particular, these compounds have coronary vasodilator activity and are useful in the treatment of angina pectoris.