The synthesis of new derivatives of p-coumaric acid was carried out through serial reactions, i.e. alkylating, base hydrolysis, catalytic hydrogenation, and Fisher esterification. All reactions except catalytic hydrogenation were conducted by utilizing microwave irradiation from a household microwave oven. The antiplatelet tests using clotting time showed that p-coumaric acid and its derivatives have antiplatelet activity which is related to the lipophilic nature of the compounds and its affinity with the selected target molecule, i.e. COX-1 enzyme (PDB ID 1CQE).