13190-34-6Relevant articles and documents
Synthetic method of antiviral drug (R,S)-goitrine
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Paragraph 0016; 0030; 0034; 0039; 0044; 0049, (2019/04/26)
The invention discloses a synthetic method of an antiviral drug (R,S)-goitrine. The synthesis method comprise the following steps: dissolving nitromethane in a proper solvent, adding acrolein, carrying out stirring at a set temperature for a period of time to obtain a solution A, dissolving triethylamine into residual nitromethane to obtain a solution B, dropwise adding the solution B into the solution A for a reaction, carrying out rotary evaporation to remove the solvent and unreacted nitromethane after the reaction is completed, and carrying out column chromatography separation on the obtained mixture to obtain 1-nitro-3-butenyl-2-ol; reducing nitro of the 1-nitro-3-butenyl-2-ol by an iron powder reduction method to obtain 1-amino-3-butenyl-2-ol; and further carrying out a cyclization reaction on the 1-amino-3-butenyl-2-ol with carbon disulfide to generate the (R,S)-goitrine. The synthetic method disclosed by the invention had the advantages of low cost, simple operation, safety andenvironmentally friendliness.
A high-purity 5 - vinyl oxazolidine -2 - thione preparation method
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Paragraph 0033-0048, (2017/08/24)
The invention discloses a preparation method of high-purity 5-vinyl oxazolidine-2-thioketone. The preparation method comprises the following steps: carrying out coordination on 1-amino-3-butene-2-alcohol taken as a starting material by using lead nitrate water solution, carrying out annulation on the raw material and CS2 in alkaline environment of potassium hydroxide solution, filtering the reaction liquid, extracting the reaction liquid by using ethyl acetate, carrying out liquid separation, drying and rotary evaporation to obtain a crude product, purifying the water solution containing the crude product through a preparative liquid chromatograph, receiving a mobile phase in the retention time period of a target product, and carrying out rotary evaporation and drying to obtain the product. According to the method, the steps are simple, the operation is convenient, the cost is low and the output is relatively high; and according to the method, the single-pass preparation amount can be up to 0.2-0.3g and the purity is 99.0-99.5%.
BIOSYNTHESIS OF 2-HYDROXY-3-BUTENYLGLUCOSINOLATE AND 3-BUTENYLGLUCOSINOLATE IN BRASSICA NAPUS
Rossiter, J. T.,James, D. C.,Atkins, N.
, p. 2509 - 2512 (2007/10/02)
Desulpho-3-butenylglucosinolate is considered to be a potential late stage precursor in the biosynthesis of (R)-2-hydroxy-3-butenylglucosinolate (progoitrin) and 3-butenylglucosinolate (gluconapin) in Brassica.Chemically synthesized (β-D-glucopyranosyl)-4-pentenethiohydroxamic acid when administered to developing seedlings of Brassica napus cv Bienvenu was found to be well incorporated into both 2-hydroxy-3-butenylglucosinolate and 3-butenylglucosinolate, while feeding experiments with methionine have shown that de novo biosynthesis is slow.Analysis of seeds and developing seedlings has shown that levels of 2-hydroxy-3-butenylglucosinolate are maintained while 3-butenylglucosinolate levels are considerably reduced.