104333-69-9

Upstream product

• 104333-70-2 (2R,3R)-2-benzyloxy-3-hydroxy-1,4-butanedioic acid dimethyl ester 
• 104333-72-4 methyl[2R-(R*,R*)]-2-hydroxy-4-oxo-3-phenylmethoxy-4-[(phenylmethoxy)-amino]-butanoate 
• 104333-71-3 (2R,3R)-2-Benzyloxy-3-hydroxy-succinic acid 4-methyl ester 
• 38270-72-3 dimethyl 2,3-O-benzylidene-L-tartrate 
• 104333-73-5 methyl[2R-(R*,R*)]-2-[(4-methylphenylsulfonyl)-oxy]-4-oxo-3-benzyloxy-4-[benzyloxy-amino]-butanoate 

Relevant academic research and scientific papers

Synthesis of 3α-alkoxy-4β-substituted-2-azetidinones from L(+)-tartaric acid

Tartaric acid, regioselective saponification, Pig Liver Esterase, 3-methoxy-2-azetidinone, N-Hydroxy-2-thiopyridone, radical decarboxylation. The synthesis of 3α-alkoxy-4β-azetidinones from L(+) tartaric acid is described. Regioselective saponification and methylation along with a stereo selective radical decarboxylative alkylation are key steps leading to optically pure trans-β-lactams.

Optically active 4-carbalkoxy-2-azetidinones

Novel 2-azetidinones of the formula STR1 wherein R is alkyl of 1 to 4 carbon atoms, R1 is selected from the group consisting of hydrogen, --OH, protected hydroxy and --OCH2 --COOR', R' is selected from the group consisting of hydroge