A Synthesis of Enantiomerically Pure 3- and 3,3-Disubstituted Pyrrolidines
摘要:
Enantiomerically pure bicyclic lactam 1, derived from (S)-phenylglycinol, underwent diastereoselective mono- and dialkylation affording substituted lactams 2 and 3 bearing tertiary and quaternary stereocenters. Reduction with LiAlH4 furnished N-(2'-hydroxy-1'-phenylethyl) pyrrolidines 4 which were efficiently debenzylated by catalytic hydrogenolysis to afford enantiomerically pure 3-mono- and 3,3-disubstituted pyrrolidines 5.
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I
as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I
as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.