1500076-79-8Relevant articles and documents
Preparation method of intermediate
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, (2021/09/08)
The invention relates to the technical field of biological pharmacy. More specifically, the compound shown in Formula -3 - is prepared by reacting a compound represented by Formula -4 - with a modified 4R red aluminum, and then subjecting the compound of
A (2 R) -2 - deoxy -2 - fluoro -2 - methyl - D - ribofuranosyl chloride preparation method
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Paragraph 0059-0064, (2019/03/28)
The invention relates to the field of medical synthesis, in particular to (2 R) - 2 - deoxy - 2 - fluoro - 2 - methyl - D - ribofuranosyl chloride preparation technical field. The invention provides a (2 R) - 2 - deoxy - 2 - fluoro - 2 - methyl - D - ribo
A preparation process of rope non-cloth wei improved method
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, (2019/03/28)
The invention provides a method for improving technique of rope non-cloth wei, for the oxidation of olefinic bond when [...], the oxidizing agent is potassium permanganate into sodium permanganate, product yield from 78% improved to 90% or more; in cytosine with halo ethylthio butt coupling reaction using tin tetrachloride to replace the zinc chloride catalytic, yield from 75% to a 88%; using five fluoro phenol instead of the nitro phenol to prepare phosphoric acid ester side chain, so that the phosphoric acid ester side chain of the yield from 80% up to 95%.