Storage below 25°C may cause formation of crystalline magnesium salts. Moving container to a warm location and occasional gentle swirling should redissolve the solid.
Replacement of the lactone moiety on podophyllotoxin and steganacin analogues with a 1, 5-disubstituted 1, 2, 3-triazole via ruthenium-catalyzed click chemistry.
Nuclear medicine and biology, 27(6), 533-539 (2000-11-01)
Imaging neuroreceptors with radiolabeled agonists might provide valuable information on the in vivo agonist affinity states of receptors of interest. We report here the radiosynthesis, biodistribution in rodents, and imaging studies in baboons of [(11)C]-labeled (-)-N-propyl-norapomorphine [(-)-NPA]. (-)-[(11)C]NPA was prepared
Chemical & pharmaceutical bulletin, 48(12), 1999-2002 (2001-01-06)
The direct alpha-bromination of various ketones using trifluoromethanesulfonic anhydride and Grignard reagent or magnesium bromide in ether gave the corresponding alpha-bromo ketones in moderate to good yields under mild reaction conditions.
An analytical procedure was developed for regiodistribution analysis of TAG using alpha-MAG prepared by an ethyl magnesium bromide deacylation. In the present communication, the deacylation procedure is shown to lead to representative alpha-MAG, allowing the composition of the native TAG
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