825633-61-2

Upstream product

• 596128-74-4 (2S,3R)-3-Acetylamino-2-benzyloxy-4-(4-methoxy-phenoxy)-butyric acid ethyl ester 
• 544455-39-2 (2S,3R)-3-Acetylamino-2-hydroxy-4-(4-methoxy-phenoxy)-butyric acid ethyl ester 
• 544455-38-1 ethyl (2E)-4-(4-methoxyphenoxy)but-2-enoate 
• 24424-99-5 di-tert-butyl dicarbonate 
• 100-44-7 benzyl chloride 

Downstream Products

• 825633-71-4 (2R,3S,4R,5R)-3-Benzyloxy-4-hydroxy-5-hydroxymethyl-2-(4-methoxy-phenoxymethyl)-pyrrolidine-1-carboxylic acid tert-butyl ester 
• 825633-63-4 [(1R,2S,3R)-2-Benzyloxy-3-hydroxy-1-(4-methoxy-phenoxymethyl)-pent-4-enyl]-carbamic acid tert-butyl ester 
• 873014-41-6 Toluene-4-sulfonic acid (E)-(5S,6S,7R)-6-benzyloxy-7-tert-butoxycarbonylamino-5-hydroxy-8-(4-methoxy-phenoxy)-oct-3-enyl ester 
• 825633-62-3 [(1R,2S,3S)-2-Benzyloxy-3-hydroxy-1-(4-methoxy-phenoxymethyl)-pent-4-enyl]-carbamic acid tert-butyl ester 
• 873014-44-9 (1S,2S,3R,7S,7aS)-2-Benzyloxy-3-(4-methoxy-phenoxymethyl)-hexahydro-pyrrolizine-1,7-diol 
• 873014-45-0 (1S,2S,3R,7R,7aR)-2-Benzyloxy-3-(4-methoxy-phenoxymethyl)-hexahydro-pyrrolizine-1,7-diol 
• 851724-09-9 [(1R,2S)-2-Benzyloxy-1-(4-methoxy-phenoxymethyl)-3-oxo-propyl]-carbamic acid tert-butyl ester 

Relevant academic research and scientific papers

A general asymmetric route for the synthesis of the alexine and australine family of pyrrolizidine alkaloids. The first asymmetric synthesis of 1,2-diepi-alexine and 1,2,7-triepi-australine

The first asymmetric synthesis of 1,2-diepi-alexine and 1,2,7-triepi-australine (both are unknown at present) is described, which utilized the regioselective asymmetric aminohydroxylation (RAA) reaction of the achiral olefin VI, the cross metathesis (CM)

Hg(II) reagent-controlled stereoselective synthesis of 2,5-cis- and 2,5-trans-polyhydroxylated pyrrolidines

Stereoselectivity in the intramolecular amidomercuration reaction of 11, which could form 2,5-cis- and 2,5-trans-polyhydroxylated pyrrolidines, was found to be dependent on the nature of the Hg(II) salts used as well as on the stereochemistry and protection state of the hydroxyl group at the allylic carbon. Thus, the amidomercuration reaction of 11 with Hg(CF3CO 2)2 led to the predominant formation of the 2,5-cis-polyhydroxylated pyrrolidine 16, while use of Hg(CF3SO 3)2 generated the corresponding 2,5-trans isomer 17. Isomers 16 and 17 were further elaborated to stereoselectively synthesize 2,5-dideoxy 2,5-imino-D-altritol and 2,5-dideoxy 2,5-imino-D-galactitol (for 20 and 21), which are known to be potent D-galactosidase inhibitors.