Methods and systems for selective fluorination of organic molecules
申请人:Fasan Rudi
公开号:US20090061471A1
公开(公告)日:2009-03-05
A method and system for selectively fluorinating organic molecules on a target site wherein the target site is activated and then fluorinated are shown together with a method and system for identifying a molecule having a biological activity.
METHODS AND SYSTEMS FOR SELECTIVE FLUORINATION OF ORGANIC MOLECULES
申请人:Fasan Rudi
公开号:US20090209010A1
公开(公告)日:2009-08-20
A method and system for selectively fluorinating organic molecules on a target site wherein the target site is activated and then fluorinated are shown together with a method and system for identifying a molecule having a biological activity.
Mentha x piperita shoot tips and first leaf pair were fed with aqueous solutions of [(2)H(2)]- and [(2)H(2)]/[(18)O]-labeled pulegone. The essential oil was analyzed by solid phase microextraction and enantioselective multidimensional gas chromatography/mass spectrometry. After feeding experiments with labeled pulegone racemate, both labeled (S)-menthofuran and (R)-menthofuran were detectable simultaneously together with genuine (R)-menthofuran. It could be shown that both labeled pulegone enantiomers are converted by Mentha x piperita to the corresponding labeled menthofuran enantiomers, favoring the labeled analogue of the nongenuine (S)-pulegone. The oxygen in menthofuran is introduced by enzymatic oxidation of pulegone, as concluded from feeding experiments with mixed labeled [(2)H(2)]/[(18)O]pulegone.