Synfacts 2011(10): 1046-1046  
DOI: 10.1055/s-0030-1261040
Synthesis of Natural Products and Potential Drugs
© Georg Thieme Verlag Stuttgart ˙ New York

Synthesis of Toll-like Receptor Agonist PF-4171455

Contributor(s): Philip Kocienski
G. Bish*, P. B. Hodgson et al.*
Pfizer Global Research and Development, Sandwich and London, UK
Further Information

Publication History

Publication Date:
20 September 2011 (online)

Significance

Toll-like receptor 7 (TLR7) recog­nizes single-stranded RNA from viral pathogens and helps mount a challenge to them. PF-4171455 is an agonist of TLR7 that is of interest for antiviral applications. An 11-step synthesis delivered 8.8 kg of the target molecule in 11% overall yield.