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MurF is a key enzyme in the biosynthesis of the bacterial cell wall in both gram-positive and gram-negative bacteria. This enzyme has not been extensively exploited as a drug target, possibly due to the difficulty in obtaining one of the substrates, UDP-MurNAc-L-Ala-gamma-D-Glu-meso-diaminopimelate, which is usually purified from bacteria. We have(More)
Spermatogenesis in the lycophyte Phylloglossum is characterized by profound ultrastructural changes that involve complex microtubule arrays and discrete microtubule organizing centers (MTOCs). The first visible MTOC is an electron-opaque acentriolar centrosome that organizes the mitotic spindles in late spermatogeneous cells. In the spermatid mother cell,(More)
The nitrone above is readily available via the intramolecular aza Diels-Alder reaction of an amino acid derived triene in acetic acid. Subsequent treatment of the nitrone in refluxing toluene with substituted actetylenes produced the pictured pyrrole. At lower temperatures a 2,3-dihydroisoxazole, which is the product of a 3+2 dipolar cycloaddition, is(More)
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