trans-tert-Butyl 3-Fluoro-4-(h

Determination of Pyrethroids in Blood Plasma and Pyrethroid/Pyrethrin Metabolites in Urine by Gas Chromatography-Mass Spectrometry and High-Resolution

carboxylic acid, cis -3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane carboxylic acid, 3-phenoxybenzoic, and 4-fluoro-3-phenoxybenzoic acid as well as of the pyrethrin/bioallethrin-specific metabolite trans -chrysanthemumdicarboxylic acid (-CDCA). After acid

Determination of Sulfur Amino Acids, Glutathione, and Related Aminothiols in Biological Samples by Gas Chromatography with Flame Photometric Detection

and lack sensitivity. GC methods based on the conversion into trimethylsilyl (4 ,5 ), neopentylidine (6 ), and N-trifluoroacetyl n -butyl ester (7 ) derivatives lack sensitivity, gives a tailing peak and requires anhydrous derivatization conditions

Synthesis of Peptide‐Oligonucleotide Conjugates by Diels‐Alder Cycloaddition in Water

) N α ‐(9‐Fluorenylmethoxycarbonyl)‐protected amino acids (Fmoc‐aa‐OH; Novabiochem, Bachem): e.g., for sequences illustrated here, Arg(Pbf), Gly, Leu, Phe, Ser(t Bu), and Tyr(t Bu) (t Bu: tert ‐butyl; Pbf