Syntheses of iminolyxitols via tandem reduction-alkenylation of O'Donnell's Schiff bases
摘要:
The concise enantioselective synthesis of iminolyxitol glycosidase inhibitors starting from bentophenone imines of D-serine and L-alanine esters is very efficient. The reductive-alkenylation of the Schiff bases followed by substrate-directed dihydroxylation and amino dehydration gave the polyhydroxylated pyrrolidines in excellent overall yields (19.6% for (3) under bar --> (8) under bar, 9.9% for (9) under bar --> <(13)under bar>.) (C) 1998 Elsevier Science Ltd. All rights reserved.
Syntheses of iminolyxitols via tandem reduction-alkenylation of O'Donnell's Schiff bases
摘要:
The concise enantioselective synthesis of iminolyxitol glycosidase inhibitors starting from bentophenone imines of D-serine and L-alanine esters is very efficient. The reductive-alkenylation of the Schiff bases followed by substrate-directed dihydroxylation and amino dehydration gave the polyhydroxylated pyrrolidines in excellent overall yields (19.6% for (3) under bar --> (8) under bar, 9.9% for (9) under bar --> <(13)under bar>.) (C) 1998 Elsevier Science Ltd. All rights reserved.