Patents

2. ''Process for the Synthesis of Prostaglandins and Intermediates thereof"
M. Edoardo, E. Andriolo, G. Orrù, M. Montorsi, M. Bandini, M. Contento, A. Tolomell European Patent, EP 2 495 235 A1.   

1. "Process for the preparation of drospirenone"
E. Andriolo, M. Montorsi, S. Rancan, E. Mariani, M. Bandini, M. Contento, A. Umani-Ronchi, PCT Int. Appl. (2009), 46pp CODEN: PIXXD2 WO 2009012955 A2 20090129  AN 2009:115238.