136137-17-2

Upstream product

• 84209-24-5 cis-1-p-methoxyphenyl-3-phthalimido-4-styrylazetidin-2-one 
• 104-94-9 4-methoxy-aniline 
• 88315-63-3 (E)-4-methoxy-N-((E)-3-phenylallylidene)aniline 
• 6780-38-7 N-phthaloylglycine chloride 
• 126158-18-7 (2R*,3R*)-3-(1,3-dioxoisoindolin-2-yl)-1-(4-methoxyphenyl)-4-oxoazetidine-2-carbaldehyde 
• 24978-42-5 1,4-bis(4'-methoxyphenyl)-1,4-diazabuta-1,3-diene 

Downstream Products

• 136137-20-7 1-p-methoxyphenyl-3-phthalimido-4-(1'-p-methoxyphenyl-3'-phenyl-azetidin-2'-one-4'-yl)-azetidin-2-one 

Relevant academic research and scientific papers

Diastereoselective synthesis of bis-beta-lactams

Schiff bases derived from (±)-4-aldehydo-2- -azetidinones react with acid chlorides and triethylamine to produce (±)-bis-β-lactams in a diastereoselective fashion. The steric course of β-lactam fonnation was determined in one case by using chiral HPLC sep