2015-05-042015-05-042006-09-12Shackleton, Cedric, Guo, Li-Wei and Wilson, William K., "Dehydro-estriol (8-DHE3) and dehydro-pregnanetriol (7-DHPT)- methods of their synthesis." Patent US7105637B2. issued 2006-09-12. Retrieved from https://hdl.handle.net/1911/79922.https://hdl.handle.net/1911/79922The invention provides isolated dehydro-estriol (8-DHE3) and dehydro-pregnanetriol (7-DHPT), and methods of their synthesis. These compounds are useful in diagnosis of Smith-Lemli-Optiz syndrome (SLOS).15 ppengUtility patentUS7105637B2