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Title: Synthesis of new N,N-disubstituted 4-amino-5,6-dihydro-3-phenyl-2H-thieno[2,3-h]-1-benzopyran-2-ones. Author: Longobardi M, Mariani E, Bargagna A, Mazzeo F, Vitelli MR, Giordano L, Falcone G. Journal: Farmaco; 2001 Aug; 56(8):625-8. PubMed ID: 11601650. Abstract: The synthesis of some N,N-disubstituted 4-amino-5,6-dihydro-3-phenyl-2H-thieno[2,3-h]-1-benzopyran-2-ones (4a-f), by reaction of phenylchloroketene with a series of N,N-disubstituted (E)-5-aminomethylene-6,7-dihydrobenzo[b]thiophen-4(5)-ones, followed by dehydrochlorination in situ of the primary adducts with DBN, is described. A moderate local anaesthetic activity was observed in the title compounds, particularly in 4e.[Abstract] [Full Text] [Related] [New Search]