A Practical Synthesis of the Kappa Opioid Receptor Selective Agonist (+)-5R,7S,8S-N-Methyl-N-[7-(1-pyrrolidinyl)-1-oxospiro[4,5]dec-8-yl]benzeneacetamide (U69,593) - McElroy, Timothy; Thomas, James B; Brine, George A; Navarro, Hernán A; Deschamps, Jeffrey; Carroll, F Ivy (Synthesis, 2008)