Sterically hindered bases. Synthesis of 2,4,6-trisubstituted pyrimidines

1. Garcia Martinez, A.
2. Herrera Fernandez, A.
3. Martinez Alvarez, R.
4. Silva Losada, M.C.
5. Molero Vilchez, D.
6. Subramanian, L.R.
7. Hanack, M.