Several naturallyoccurring cyanohydrins were tested for fumigation toxicity to two insect species, the house fly (Musca domestica L) and the lesser grain borer (Rhyzopertha dominica (F)). Synthetic analogues of these compounds were tested as well. Most of the cyanohydrins tested were more toxic as fumigants to M domestica and R dominica than chloropicrin; some compounds were nearly as toxic as dichlorvos
Recherches sur la formation et la transformation des esters XXXII. Sur la préparation de quelques nouveaux monoesters cyanoalcoyl-phosphoriques et sur leur vitesse de scission à différents pH
作者:Emile Cherbuliez、H. Probst、J. Rabinowitz
DOI:10.1002/hlca.19620450340
日期:——
The synthesis and the rate of scission of some new cyanoalkyl-phosphoric monoesters are described. In the case of β-cyanoalkyl-phosphoric monoesters, the monoester group is no more dephosphorylated in alkaline medium when the two H in the β position are substituted by alkyl groups.
Recherches sur la formation et la transformation de dérivés organiques du fluor III. Préparation d'hydroxy-acides, d'hydroxy-nitriles, d'hydroxy-esters et d'hydroxy-éthers fluorés ainsi que de leurs dérivé phosphorylés
作者:Emile Cherbuliez、A. de Picciotto、J. Rabinowitz
DOI:10.1002/hlca.19600430426
日期:——
Some new fluorinated hydroxy-acids and hydroxy-ethers as well as their phosphorylated derivatives are described.
Approximately 80-90% of prostate cancers are androgen dependent at initial diagnosis. The androgen receptor (AR) is present in most advanced prostate cancer specimens and is believed to have a critical role in its development. Today, treatment of prostate cancer is done by inhibition of AR using antiandrogens such as flutamide (pro-drug of hydroxyflutamide), nilutamide, and bicalutamide. However, there is currently no noninvasive imaging modalities to detect, guide, and monitor specific treatment of AR-positive prostate cancer. (R)-3-Bromo-N-(4-fluoro-3-(trifluoromethy, phenyl)-2-hydroxy-2-methyl-propanamide [F-18]-1 and N-(4fluoro-3-(trifluoromethyl)phenyl)-2-hydroxy-2-methylpropanamide [F-18]-2, derivatives of hydroxyflutamide, were synthesized as a fluorine-containing imaging agent candidates. A three-step fluorine-18 radiosynthesis route was developed, and the compounds were successfully labeled with a 10 +/- 3% decay corrected radiochemical yield, 95% radiochemical purity, and a specific activity of 1500 +/- 200 Ci/mmol end of bombardment (n = 10). These labeled biprobes not only may enable for the future quantitative molecular imaging of AR-positive prostate cancer using positron emission tomography but may also allow for image-guided treatment of prostate cancer. (c) 2005 Elsevier Ltd. All rights reserved.