Description  Claims  Cited references 

WO2013186229A   [0007]  [0009]  [0056] 

Drug Discovery Today   [0004] 
J. Sexual Medicine   [0004] 
Handbook of Pharmaceutical Salts: Properties, Selection and Use   [0017] 
JAMA   [0022] 
J. Clin. Invest.   [0025] 
Protective Groups in Organic Chemistry   [0053] 
Protective Groups in Organic Synthesis   [0053]