Results 251 to 260 of about 153,260 (279)

Pyrimidines

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
openaire   +1 more source

Pyrimidines

Chemistry of Heterocyclic Compounds, 1970
V. P. Mamaev, Z. D. Dubovenko
  +6 more sources

Pyrimidines

Chemistry of Heterocyclic Compounds, 1978
V. F. Sedova, V. P. Mamaev
  +5 more sources

Pyrimidines

Chemistry of Heterocyclic Compounds, 1975
V. V. Lapachev, O. A. Zagulyaeva, V. P. Mamaev   +2 more
  +4 more sources

Pyrimidine phototetramer

Journal of the American Chemical Society, 1971
S Y, Wang, D F, Rhoades
openaire   +2 more sources

Pyrimidines

1992
This chapter explores pyrimidines. Formal replacement of a CH unit in pyridine by a nitrogen atom leads to the series of three possible diazines: pyridazine, pyrimidine, and pyrazine. Like pyridine, they are fully aromatic heterocycles. The effect of an additional nitrogen atom as compared to pyridine accentuates the essential features of pyridine ...
openaire   +1 more source

Pyrimidines

Chemistry of Heterocyclic Compounds, 1977
O. E. Shkurko, V. P. Mamaev
openaire   +2 more sources

Pyrimidines. VIII. Pyrimidine Derivatives of Thioguanine

Journal of Medicinal and Pharmaceutical Chemistry, 1962
H C, KOPPEL, R H, SPRINGER, R K, ROBINS, C C, CHENG   +3 more
openaire   +2 more sources

Pyrimidines

Chemistry of Heterocyclic Compounds, 1972
�. A. Gracheva, V. P. Mamaev
  +4 more sources

Pyrimidines

Chemistry of Heterocyclic Compounds, 1971
V. F. Sedova, V. M. Mamaev
  +4 more sources