Synthesis of homochiral β-hydroxy-α-aminoacids [(2S,3R,4R)-3,4-dihydroxyproline and (2S,3R,4R)-3,4-dihydroxypipecolic aicd] and of 1,4-dideoxy-1,4-imino-D-arabinitol [DAB1] and fagomine [1,5-imino-1,2,5-trideoxy-D-arabino-hexitol]
Synthesis of chiral pyrrolidine and piperidine glycosidase inhibitors
申请人:MONSANTO COMPANY
公开号:EP0439444A2
公开(公告)日:1991-07-31
There is disclosed a novel method for the syntheses of chiral pyrrolidines and piperidines by the intramolecular ring closure of anomeric mixtures of 4-amino- and 5-amino-2-trifluoromethanesulfonates of methyl furanosides. The novel method preferably provides for the efficient syntheses from diacetone glucose of 1,4-dideoxy-1,4-imino-D-arabinitol - known as DAB1, (2S,3R,4R)-3,4-dihydroxyproline, fagomine [1,5-imino-1,2,5-trideoxy-D-arabino-hexitol], and (2S,3R,4R)-3,4-dihydroxypipecolic acid by intramolecular nucleophilic displacement by an amino function of 2-O-trifluoromethanesulphonates of anomeric mixtures of methyl furanosides.
FLEET, GEORGE W. J.;WITTY, DAVID R., TETRAHEDRON: ASYMMETRY, 1,(1990) N, C. 119-136
作者:FLEET, GEORGE W. J.、WITTY, DAVID R.
DOI:——
日期:——
JPH04210962A
申请人:——
公开号:JPH04210962A
公开(公告)日:1992-08-03
US5013842A
申请人:——
公开号:US5013842A
公开(公告)日:1991-05-07
Synthesis of homochiral β-hydroxy-α-aminoacids [(2S,3R,4R)-3,4-dihydroxyproline and (2S,3R,4R)-3,4-dihydroxypipecolic aicd] and of 1,4-dideoxy-1,4-imino-D-arabinitol [DAB1] and fagomine [1,5-imino-1,2,5-trideoxy-D-arabino-hexitol]