14868-37-2Relevant articles and documents
Application chromatography. XXXIV. Structure of the purple fluorescent substance produced by Eremothecium ashbyil.
MASUDA,KISHI,ASAI
, p. 291 - 299 (1958)
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Synthesis of some new condensed pyrimidines: Thienopteridine and purine derivatives
El-Farargy,Assy,Hassanien
, p. 109 - 119 (2007/10/02)
7-Hydroxypteridine (3) and its isomeric 6-hydroxypteridine (4) were prepared by condensation of 5,6-diaminouracil (1) with ethyl thienoylpyruvate (2) in pyridine and hydrochloric acid, respectively. Compounds 3 and 4 were converted into the corresponding thienopteridines 8 and 9 upon treatment with phosphorus pentasulphide. The synthesis of pteridines 12 and 13 was achieved from nitrosouracil (10). Also, the purine 15 and condensed purine 18 were prepared.