N 6-Substituted 2-amino-4-chloro-5-formylpyrimidines: Puckered versus planar pyrimidine rings, and hydrogen-bonded aggregation in zero, one, two and three dimensions

1. Cobo, J.
2. Trilleras, J.
3. Quiroga, J.
4. Marchal, A.
5. Nogueras, M.
6. Low, J.N.
7. Glidewell, C.