94271-66-6

Upstream product

• 81902-49-0 diethyl N-(2,4-dimethoxybenzyl)-amino-malonate 
• 27109-47-3 2-bromoisovaleryl chloride 
• 94271-65-5 diethyl (+/-)-N-(2-bromo-3-methylbutanoyl)-N-(2,4-dimethoxybenzyl)aminomalonate 

Downstream Products

• 94271-67-7 ethyl (+/-)-3-isopropyl-1-(2,4-dimethoxybenzyl)-4-oxo-2-azetidinecarboxylate 
• 94271-67-7 ethyl (+/-)-3-isopropyl-1-(2,4-dimethoxybenzyl)-4-oxo-2-azetidinecarboxylate 
• 129374-88-5 2-Hydroxy-2-((2S,3S)-3-isopropyl-2-methanesulfonyloxymethyl-4-oxo-azetidin-1-yl)-3-oxo-butyric acid benzyl ester 
• 136582-28-0 cis-benzyl 3-hydroxy-2-<2-oxo-3-isopropyl-4-(methylsulfonyloxymethyl)azetidin-1-yl>but-2-enoate 
• 129374-68-1 cis-benzyl 7-isopropyl-3-methyl-2-isocephem-4-carboxylate 
• 129374-66-9 cis-benzyl 7-isopropyl-3-methyl-2-iso-oxacephem-4-carboxylate 
• 129374-60-3 cis-4-hydroxymethyl-3-isopropyl-1-(2,4-dimethoxybenzyl)azetidin-2-one 

Relevant academic research and scientific papers

SIMPLE AND CONDENSED β-LACTAMS. Part 6. A Synthesis of the p-Nitrobenzyl Esters of the Racemic Forms of the Carbapenem Antibiotics PS-5 and PS-6, and of Their 6-Epimers.

The p-nitrobenzyl esters of the racemic carbapenem antibiotics PS-5 and PS-6, and of their 6-epimers were synthesised starting with the trans (6a, 6c) and cis forms (6b, 6d) of ethyl 1-(2,4-dimethoxybenzyl)-4-oxo-2-azetidinecarboxylates, respectively.