Triazines. XIV. The Extension of the Pinner Synthesis of Monohydroxy-s-triazines to the Aliphatic Series. 2,4-Dimethyl-s-triazine<sup>1-3</sup>
作者:Hansjuergen Schroeder、Christoph Grundmann
DOI:10.1021/ja01592a028
日期:1956.6
AL-SHAAR, ADNAN H. M.;GILMOUR, DAVID W.;LYTHGOE, DAVID J.;MCCLENAGHAN, IA+, J. HETEROCYCL. CHEM., 26,(1989) N, C. 1819-1825
作者:AL-SHAAR, ADNAN H. M.、GILMOUR, DAVID W.、LYTHGOE, DAVID J.、MCCLENAGHAN, IA+
DOI:——
日期:——
Synthetic studies on an antitumor antibiotic, bleomycin. XIII. Synthesis of 2-formylpyrimidine, a key intermediate for the pyrimidine moiety of bleomycin.
An efficient synthesis of the pyrimidine nucleus of bleomycin was achieved. The reaction of diethoxyacetamidine and ethyl ethoxalylpropionate gave ethyl 2-diethoxymethyl-6-hydroxy-5-methylpyrimidine-4-carboxylate in 76% yield ; this product was then converted into ethyl 6-chloro-2-formyl-5-methylpyrimidine-4-carboxylate in 85% yield by treatment with POCl3.