Synthesis and Structure of New Pyrido[2,3-d]pyrimidine Derivatives with Calcium Channel Antagonist Activity

1. Pastor, A.
2. Alajarin, R.
3. J. Vaquero, J.
4. Alvarez-Builla, J.
5. Fau de Casa-Juana, M.
6. Sunkel, C.
7. G. Priego, J.
8. Fonseca, I.
9. Sanz-Aparicio, J.