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Upon treatment with trimethylsilyl 2,2-difluoro-2-fluorosulfonylacetate (TFDA) and a catalytic amount of N,N,N′,N′-tetramethyl-1,8-diaminonaphthalene, secondary thioamides and thiocarbamates undergo selective difluoromethylation on the sulfur atom to give S-difluoromethyl thioimidates and thioiminocarbonates in good yields, respectively. This is the first report on the synthesis of acyclic difluoromethyl...
Using the yeast two-hybrid system, we isolated a human cDNA that encodes a protein (hp22) interacting with TATA box-binding factor TFIID subunit p80 containing similarity with histone H4. Sequence analysis showed that the open reading frame (ORF) specifies a 161-amino-acid (aa) polypeptide homologous to Drosophila melanogaster TFIID subunit p22 (dp22). Comparison of the aa sequence of human TFIID...
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