204002-77-7Relevant articles and documents
Formal desymmetrization by a "Mitsunobu trick" - Enantiomerically pure cis-3,4-Dihydroxypyrroline N-oxides for the enantiodivergent synthesis of trihydroxyindolizidines
Cicchi, Stefano,Nunes Jr., Jose,Goti, Andrea,Brandi, Alberto
, p. 419 - 421 (2007/10/03)
A protocol is presented for a completely enantioselective formal desymmetrization of Cs-symmetric diols by monoproteclion of the corresponding enanliopure C2 diols, followed by an inversion of configuration by a Mitsunobu reaction ("Mitsunobu trick"). Its application to the unprecedented synthesis of enantiopure cis-3,4-dihydroxypyrroline N-oxides, employed in the enantiodivergent synthesis of two selectively protected 1,2,7-trihydroxyindolizidines, is also reported.