Process for stereoselectively reducing 4-aryl-4-oxobutanoic acid derivatives
申请人:——
公开号:US20040030181A1
公开(公告)日:2004-02-12
The present invention relates to a process for preparing stereoisomerically enriched 4-aryl-4-hydroxybutanoic acid derivatives by reducing 4-aryl-4-ketobutanoic acid derivatives in the presence of ruthenium-containing catalysts.
The invention provides a conjugate comprising a peptide nucleic acid molecule, wherein the peptide nucleic acid molecule is conjugated to two identical fluorophores through peptidic linkers. Upon binding to a complementary RNA or DNA sequence, the fluorescence of the construct is enhanced, allowing the detection of the binding event. The invention also relates to the identification of a RNA or DNA sequence in vitro or in vivo using such conjugate.