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.
机构:
A. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of ArmeniaA. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of Armenia
Oganisyan A.Sh.
Noravyan A.S.
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机构:
A. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of ArmeniaA. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of Armenia
Noravyan A.S.
Grigoryan M.Zh.
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A. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of ArmeniaA. L. Mndzhoyan Institute of Fine Organic Chemistry, National Academy of Sciences of the Republic of Armenia