1. Pyrido[2,3-d]pyrimidin-7-one Inhibitors of Cyclin-Dependent Kinases
2. 2-Substituted Aminopyrido[2,3-d]pyrimidin-7(8H)-ones. Structure−Activity Relationships Against Selected Tyrosine Kinases and in Vitro and in Vivo Anticancer Activity
3. Synthesis and Tyrosine Kinase Inhibitory Activity of a Series of 2-Amino-8H-pyrido[2,3-d]pyrimidines: Identification of Potent, Selective Platelet-Derived Growth Factor Receptor Tyrosine Kinase Inhibitors
4. Aldehyde 5 is available from Maybridge but may also be easily prepared in one step from the more readily available 4,6-dihydroxy-2-methylsulfanylpyrimidine using the procedure described in: (a) Santilli, A. A.; Dong, H. K.; Wander, S. K. J. Heterocyclic Chem. 1971, 8, 445–453. For other examples of previously described pyrimidines which could be used to assemble a heavily derivatized bicyclic system, see: (b) Taylor, E. C.; Gillespie, P. J. Org. Chem. 1992, 57, 5757–5761; (c) Wormstadt, F.; Brinckman, U.; Gutschow, M.; Eger, K. J. Heterocyclic Chem. 2000, 37, 1187–1191.
5. Direct synthesis of Z-unsaturated esters. A useful modification of the horner-emmons olefination.