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SCH-530,348 is a thrombin receptor (PAR-1) antagonist based on the natural product himbacine. Developed by Schering-Plough, SCH-530,348 is a potential treatment for acute coronary syndrome chest pain caused by coronary artery disease.
Now owned by Merck, this compound is being called Vorapaxar.
References
Samuel Chackalamannil (2008). "Discovery of a Novel, Orally Active Himbacine-Based Thrombin Receptor Antagonist (SCH 530348) with Potent Antiplatelet Activity". Journal of Medicinal Chemistry. 51: 3061. doi:10.1021/jm800180e.