1,3:4,6-Di-O-benzylidene-d-mannitol as a source for novel chiral intermediates through regioselective reductive cleavage
摘要:
Synthetically useful chiral intermediates have been synthesized starting from 1,3:4.6-di-O-benzylidene-D-mannitol by yields. regioselective reductive cleavage using (BF3Et2O)-Et-. and Et3SiH in high (C) 2004 Elsevier Ltd. All rights reserved.
1,3:4,6-Di-O-benzylidene-d-mannitol as a source for novel chiral intermediates through regioselective reductive cleavage
作者:Appu Aravind、Sundarababu Baskaran
DOI:10.1016/j.tetlet.2004.12.036
日期:2005.1
Synthetically useful chiral intermediates have been synthesized starting from 1,3:4.6-di-O-benzylidene-D-mannitol by yields. regioselective reductive cleavage using (BF3Et2O)-Et-. and Et3SiH in high (C) 2004 Elsevier Ltd. All rights reserved.
Regioselective Reductive Cleavage of Bis-benzylidene Acetal: Stereoselective Synthesis of Anticancer Agent OGT2378 and Glycosidase Inhibitor 1,4-Dideoxy-1,4-imino-<scp>l</scp>-xylitol
A highly regioselectivereductivecleavage of the bis-benzylidene acetal of d-mannitol was performed using a BF3·Et2O/Et3SiH reagent system. A chiral intermediate 6 thus obtained was efficiently utilized in the stereoselective synthesis of the anticancer agent OGT2378 (3) and glycosidase inhibitor derivative N-tosyl 1,4-dideoxy-1,4-imino-l-xylitol (22). Chemoselective reduction of azido epoxide 10