207291-30-3

Upstream product

• 108-24-7 acetic anhydride 
• 207291-24-5 4-[(2S,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1-(4-methoxy-phenyl)-4-oxo-azetidin-2-yl]-4-hydroxy-pent-2-ynoic acid ethyl ester 
• 172944-57-9 (3S,4S)-4-((4S,5S)-4,5-Bis-methoxymethyl-2-methyl-[1,3]dioxolan-2-yl)-3-((R)-1-hydroxy-ethyl)-1-(4-methoxy-phenyl)-azetidin-2-one 
• 18162-48-6 tert-butyldimethylsilyl chloride 
• 139308-11-5 (4S)-4-<(4S,5S)-4,5-dimethoxymethyl-2-methyl-1,3-dioxolan-2-yl>-1-p-methoxyphenyl-2-azetidinone 

Downstream Products

• 171782-13-1 (E)-(S)-4-[(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1-(4-methoxy-phenyl)-4-oxo-azetidin-2-yl]-pent-2-enoic acid ethyl ester 
• 171782-15-3 (E)-4-[(2S,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1-(4-methoxy-phenyl)-4-oxo-azetidin-2-yl]-penta-2,4-dienoic acid ethyl ester 

Relevant academic research and scientific papers

Hydrogenolysis-Isomerization-Reduction of Propargyl Acetate, and Regio- and Stereoselective Hydrogenation of Dienyl Ester for the Synthesis of 1β-Methylcarbapenem Precursor

A straightforward synthetic route of 1β-methylcarbapenem precursor is established by hydrogenolysis-isomerization-reduction process of propargyl acetate or by regio- and stereoselective hydrogenation process of dienyl ester with complete stereoselectivity