Design, Synthesis, and Identification of Silicon Incorporated Oxazolidinone Antibiotics with Improved Brain Exposure

• Published in: ACS medicinal chemistry letters Vol. 6; no. 11; pp. 1105 - 1110
• Main Authors: Seetharamsingh, B, Ramesh, Remya, Dange, Santoshkumar S, Khairnar, Pankaj V, Singhal, Smita, Upadhyay, Dilip, Veeraraghavan, Sridhar, Viswanadha, Srikant, Vakkalanka, Swaroop, Reddy, D. Srinivasa
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12-11-2015
• Subjects: Letter; oxazolidinone; linezolid; Antibacterial; sila analogue; brain exposure
• ISSN: 1948-5875; 1948-5875
• DOI: 10.1021/acsmedchemlett.5b00213

Therapeutic options for brain infections caused by pathogens with a reduced sensitivity to drugs are limited. Recent reports on the potential use of linezolid in treating brain infections prompted us to design novel compounds around this scaffold. Herein, we describe the design and synthesis of various oxazolidinone antibiotics with the incorporation of silicon. Our findings in preclinical species suggest that silicon incorporation is highly useful in improving brain exposures. Interestingly, three compounds from this series demonstrated up to a 30-fold higher brain/plasma ratio when compared to linezolid thereby indicating their therapeutic potential in brain associated disorders.