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Article
Stereoselective glycosylations via selenium intermediate: A synthetic route to 2′-deoxynucleosides
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Article
Preparation of azides from hydrazines by using dinitrogen tetroxide as nitrosonium ion source
Various hydrazines such as aryl-, carbonyl-, and sulfonyl-hydrazine were reacted with dinitrogen tetroxide to give the corresponding azides in excellent yields under mild conditions at low temperature (−20–−40...
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Article
Toxicity and biological activity of extracts fromStichopus japonicus
The toxicity of water extracts from intestine parts (digestive tract and respiratory tree) of KoreanStichopus japonicus was determined using mouse units and more purified substance decreases the amplitude of cont...