Publication Details (including relevant citation information):
E.Fontana, A.Pignatti, D.Giribone, E.Di Salle
Steroids, 73 (2008) 760-764
The synthesis of exemestane (Aromasin®), an irreversible steroidal aromatase inhibitor, specifically labelled with 13C is reported. The preparation of [13C3]exemestane was achieved according to an eight-step procedure starting from the commercially available testosterone.