51255-17-5Relevant articles and documents
Preparation method of decitabine intermediate
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Paragraph 0043-0045, (2020/07/24)
The invention belongs to the field of pharmaceutical synthesis, and discloses a preparation method and a purification method of a decitabine intermediate (V). The preparation method comprises the following steps of enabling 2-deoxygenation-D-ribose derivative (III) and hexamethyldisilazane-activated 5-azacytosine (IV) to be subjected to a coupling reaction under the action of a catalyst to be purified to obtain the decitabine intermediate (V). The method is simple and convenient to operate, no silica gel column purification product is needed, and the method is suitable for industrial production.
2-deoxy-D-ribose derivative
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Paragraph 0048-0050; 0055-0057, (2020/08/09)
The invention belongs to the field of medicine synthesis, and provides a 2-deoxy-D-ribose derivative (III). When the derivative (III) is used for preparing decitabine, the stereoselectivity is good, and the yield is high. The invention provides a preparation method of the derivative. The preparation method comprises the following steps: step a, carrying out oxygen methylation on 1-position hydroxyl of 2-deoxy-D-ribose; and step b, protecting hydroxyl groups at positions 3 and 5, and further carrying out sulfonation on 1-position oxymethyl. The method is simple and convenient to operate, free of special equipment, good in product purity, high in yield and suitable for industrial production.
The development of β-selective glycosylation reactions with benzyl substituted 2-deoxy-1,4-dithio-D-erythro-pentofuranosides: enabling practical multi-gram syntheses of 4'-Thio-2'-deoxycytidine (T-dCyd) and 5-aza-4’-thio-2’-deoxycytidine (aza-T-dCyd) to s
Wishka, Donn G.,Lopez, Omar D.,Rudchenko, Vladimir F.,Huang, Guangfei,Bahde, Robert,Kumar, Vineet,Denysenko, Sergiy M.,Zhang, Lianhao,Zhang, Mianji,Teicher, Beverly A.,Morris, Joel
, p. 68 - 95 (2020/10/21)
The lack of effective methods to perform direct β-selective glycosylation reactions with 2-deoxy-1,4-dithio-D-erythro-pentofuranosides has long been a significant stumbling block for the multi-gram synthesis of 4’-thio-2’-deoxy nucleosides. In addition, p