Practical Synthesis of a Renin Inhibitor via a Diastereoselective Dieckmann Cyclization
作者:Danny Gauvreau、Greg J. Hughes、Stephen Y. W. Lau、Daniel J. McKay、Paul D. O’Shea、Rick R. Sidler、Bing Yu、Ian W. Davies
DOI:10.1021/ol102131e
日期:2010.11.19
A scalable synthesis of a potent renin inhibitor (1) is described. The absolute stereochemistry is set via an unprecedented diastereoselective Dieckmann cyclization directed by a remote chiralprotectinggroup. This transformation enables preparation of chiral 1,3-[3.3.1]-diazabicyclononenes by desymmetrization of alkyl-esters, with selectivities ranging from 4 to 17:1.