Question: Draw the product of the following reaction, one step in the synthesis of the antiplatelet agent clopidogrel used to reduce the risk of stokes.

Clopidogrel can be combined with aspirin to ward off problems related to the heart. It comes in the form of a tablet and can be consumed via the mouth.

Substitution reactions can be of numerous kinds, and one among them is an ${\mathbf{S}}_{\mathbf{N}}\mathbf{2}$ reaction. The nucleophile strikes from the backside in an ${\mathbf{S}}_{\mathbf{N}}\mathbf{2}$ reaction, and an inversion of configuration is observed.

Potassium carbonate functions as the base in this particular reaction. It forms a nucleophile by abstracting the most acidic proton of the reactant.

When the nucleophile reacts with the tosyl group, it strikes on the carbon atom of the C-OTs bond from the backside removing the –OTs group, which is a good nucleophile. This reaction goes via the mechanism. The product of the ${\mathrm{S}}_{\mathrm{N}}2$reaction can be given as:

Synthesis of the antiplatelet agent clopidogrel