A regioselective approach toward the synthesis of pharmacologically important quinone-containing heterocyclic systems
摘要:
An inexpensive and regioselective approach to dihydrothieno[3,2-g]quinoline-4,9-dione is reported. A combination of a mild version of Skraup reaction with a sequential substitution/Michael addition allowed the selective preparation in acceptable yield of a pharmacologically important quinone derivative, previously obtained only in trace and together with the other regioisomer. (C) 2009 Elsevier Ltd. All rights reserved.
A regioselective approach toward the synthesis of pharmacologically important quinone-containing heterocyclic systems
摘要:
An inexpensive and regioselective approach to dihydrothieno[3,2-g]quinoline-4,9-dione is reported. A combination of a mild version of Skraup reaction with a sequential substitution/Michael addition allowed the selective preparation in acceptable yield of a pharmacologically important quinone derivative, previously obtained only in trace and together with the other regioisomer. (C) 2009 Elsevier Ltd. All rights reserved.