66384-66-5Relevant articles and documents
Preparation method of high-purity antineoplastic drug triflucytidine
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Paragraph 0022; 0026; 0033-0034; 0036, (2021/06/22)
The invention discloses a preparation method of a high-purity antineoplastic drug triflucytidine, which comprises the following steps: 1) obtaining 2,6-bis(trimethylsilyl-5-trifluoromethylpyrimidine) from 5-(trifluoromethyl)uracil and hexamethyldisilazane under the action of trimethylchlorosilane; 2) carrying out condensation reaction on the 2, 6-bis(trimethylsilyl-5-trifluoromethylpyrimidine) and the 3',5'-p-chlorobenzoyl-2'-deoxy-1-chloro-D-ribofuranose, and carrying out recrystallization to obtain 3', 5'- p-chlorobenzoyl-2'-deoxy-5-trifluoromethyl uridine; (3) carrying out reaction on the 3',5'-p-chlorobenzoyl-2'-deoxy-5-trifluoromethyl uridine and trifluoromethanesulfonic anhydride, and carrying out nucleophilic substitution by using ammonia, so as to obtain 3',5'-p-chlorobenzoyl-2'-deoxy-5-trifluoromethyl cytidine; and 4) carrying out deprotection on the 3',5'-p-chlorobenzoyl-2'-deoxy-5-trifluoromethyl cytidine under the action of sodium methoxide, and filtering and washing to obtain the triflucytidine. The preparation method of the high-purity antineoplastic drug triflucytidine disclosed by the invention is convenient for industrial preparation.
Trifluoromethyl derivatives of canonical nucleosides: Synthesis and bioactivity studies
Musumeci, Domenica,Irace, Carlo,Santamaria, Rita,Montesarchio, Daniela
supporting information, p. 1405 - 1410 (2013/10/08)
The use of the system CF3SO2Na/tert-butyl- hydroperoxide (tert-ButOOH), recently reported for the efficient trifluoromethylation of a variety of heterocyclic aromatic compounds, has been here profitably exploited for the synthesis of 5-CF3-2′- deoxycytidine, 8-CF3-2′-deoxyadenosine, 8-CF 3-2′-deoxyguanosine and 8-CF3-inosine, regioselectively obtained in good to acceptable yields following a very simple protocol. The bioactivity of these modified nucleosides, and particularly of the novel 8-CF3-2′-deoxyguanosine and 8-CF3-inosine, has been evaluated on a panel of tumour and non-tumour cell lines in preliminary in vitro cytotoxicity assays.