This invention concerns a compound for detecting the presence or absence of at least one microorganism. The invention also concerns the use of a compound in a detection and/or diagnostic test. The said invention further concerns a method for detecting nitroaryl reductase activity in a bacteria culture medium. Finally, the invention concerns the use of such a compound, methods for isolating and detecting microorganisms or a group of microorganisms in a sample likely to contain them, and various applications thereof.
The invention is characterized in that the compound consist of a nitrocoumarin molecule or one of its derivatives, which is fluorescent in reduced state.
The invention is particularly applicable in the field of diagnosis.
Reaction of nitrosalicylaldehydes (1) with carbethoxymethylenetriphenylphosphorane in Et(2)NPh, in Ph(2)O, and in the absence of solvent (neat) at 210-215 degrees C was investigated. Reaction of 3-nitrosalicylaldehyde (1d) in Et(2)NPh afforded the benzoxazole (6) and the aminocoumarin (3e) along with the expected coumarin (3d). It was clarified that the origin of carbon-unit introduced for the formation of the benzoxazole ring came from the alkyl group of solvent.
US6555332B2
申请人:——
公开号:US6555332B2
公开(公告)日:2003-04-29
Stover, James S.; Shi, Jin; Jin, Wei, Journal of the American Chemical Society, 2009, vol. 131, p. 3342 - 3348
作者:Stover, James S.、Shi, Jin、Jin, Wei、Vogt, Peter K.、Boger, Dale L.