Silicon-Containing Building Blocks for Drug Design
Silicon-containing compounds have been largely ignored in drug design until recently. Silicon can be considered a bioisostere of carbon and hence offers an innovative avenue in drug discovery. For example, C/Si exchange in drug-like scaffolds provides an exciting approach in medicinal chemistry to improve ADME/Tox profile and to enhance potency of the biologically active compounds. Herein we have designed and synthesized a library of silicon-containing building blocks for drug design.
Advantages of “Silicon Switch”:
- Bond length C–C = 1.54 Å, C–Si = 1.87 Å → changes in the interactions with specific proteins;
- Increase in lipophilicity;
- Si prefers higher coordination numbers → access to compounds for which corresponding carbon analogs are not available.
More than 30 of silicon-containing building blocks from stock on a 5-10 g scale.