1. https://www.fda.gov/Drugs%20/Guidnce%20ComplianceRegulatoryInformation/Guidances/ucm1/22883.html, 1992.
2. Trivedi, B., Deshpande, P., Ravikumar, T., Gupta, S., Diwakar, S., Pawar, S., Patil, V., Dekhane, D., Patel, M., Bhavsar, S., Mishra, A., Solanki, M., Jafri, M., Bhagwat, S. (2012). US Patent WO 2012/076989 A1. Ketolide compounds.
3. Enantiomeric Separation and Thermodynamic investigation of (R)-5-[1-(4-Nitrobenzylsulfonyloxy)-ethyl]-5-(pyridine-2-yl)- [1,3,4]-thiadiazole, a Key Intermediate of Nafithromycin