Ghosh AK, Chapsal BD, Steffey M, Agniswamy J, Wang YF, Amano M, Weber IT, Mitsuya H.

Substituent effects on P2-cyclopentyltetrahydrofuranyl urethanes: design, synthesis, and X-ray studies of potent HIV-1 protease inhibitors.

Bioorg Med Chem Lett. 2012 Mar 15;22(6):2308-11. doi: 10.1016/j.bmcl.2012.01.061. Epub 2012 Feb 2. PMID: 22364812; PMCID: PMC3433276.

https://pubmed.ncbi.nlm.nih.gov/22364812/