96035-98-2

Basic information

• Product Name: (3S,4S)-4-<(1R)-1-benzyloxycarbonylethyl>-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-2-azetidinone
• Synonyms: (3S,4S)-4-<(1R)-1-benzyloxycarbonylethyl>-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-2-azetidinone
• CAS NO: 96035-98-2
• Molecular Weight: 391.583
• Mol File: 96035-98-2.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: (3S,4S)-4-<(1R)-1-benzyloxycarbonylethyl>-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-2-azetidinone(CAS DataBase Reference)
• NIST Chemistry Reference: (3S,4S)-4-<(1R)-1-benzyloxycarbonylethyl>-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-2-azetidinone(96035-98-2)
• EPA Substance Registry System: (3S,4S)-4-<(1R)-1-benzyloxycarbonylethyl>-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-2-azetidinone(96035-98-2)

Safety Data

• Hazardous Substances Data: 96035-98-2(Hazardous Substances Data)

Upstream product

• 3017-53-6 benzyl 2-bromopropionate 
• 76899-07-5 (3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one 
• 15082-42-5 lithium benzyloxide 
• 114418-63-2 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(S)-1-(4,4-dimethyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 102977-61-7 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(S)-1-((S)-4-isopropyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 114418-61-0 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(S)-1-((R)-4-phenyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 109616-59-3 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(S)-1-((S)-4-benzyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 100-39-0 benzyl bromide 
• 97101-07-0 (3S,4S)-3-<(1R)-1-<(tert-Butyldimethylsilyl)oxy>ethyl>-4-<(1S)-1-carboxyethyl>azetidin-2-one 
• 114341-78-5 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(R)-1-(2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 114341-89-8 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(R)-1-(4,4-dimethyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 114341-95-6 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(R)-1-(4,4,5,5-tetramethyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 255837-99-1 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(R)-1-((S)-4-isopropyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 
• 109715-77-7 (3S,4R)-3-<(R)-1-(t-Butyldimethylsilyloxy)ethyl>-4-<(R)-1-((S)-4-benzyl-2-oxazolidone-3-carbonyl)ethyl>-2-azetidinone 

Downstream Products

• 135038-17-4 (R)-benzyl 2-((2S,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)propanoate 
• 135096-42-3 (R)-benzyl 2-((2S,3S)-3-((1S)-1-hydroxyethyl)-4-oxoazetidin-2-yl)propanoate 
• 105318-31-8 (3S,4S)-3-<(1R)-1-tert-butyldimethylsilyloxythyl>-1-(p-nitrobenzyloxycarbonylmethyl)-4-<(1R)-1-phenylthiocarbonylethyl>-2-azetidinone 
• 105318-30-7 (3S,4S)-3-<(1R)-1-hydroxyethyl>-1-(p-nitrobenzyloxycarbonylmethyl)-4-<(1R)-1-phenylthiocarbonylethyl>-2-azetidinone 
• 105318-06-7 (3S,4S)-1-(tert-butoxycarbonylmethyl)-3-<(1R)-1-tert-butyldimethylsilyloxyethyl>-4-<(1R)-1-phenylthiocarbonylethyl>-2-azetidinone 
• 105318-23-8 (3S,4S)-3-[(1R)-1-hydroxyethyl]-4-[(1R)-1-phenylthiocarbonylethyl]-1-carboxymethylazetidin-2-one 
• 105344-45-4 p-nitrobenzyl (4R,5S,6S)-3-<(3S,5S)-5-dimethylaminocarbonyl-1-(p-nitrobenzyloxycarbonyl)pyrrolidin-3-ylthio>-4-methyl-7-oxo-6-<(1R)-1-trimethylsilyloxoethyl>-1-azabicyclo<3.2.0>hept-2-en-2-carboxylate 
• 96036-02-1 p-nitrobenzyl (4R,5S,6S)-3-<(3S,5S)-5-dimethylaminocarbonyl-1-(p-nitrobenzyloxycarbonyl)pyrrolidin-3-ylthio>-6-<(1R)-1-hydroxyethyl>-4-methyl-7-oxo-1-azabicyclo<3.2.0>hept-2-en-2-carboxylate 
• 105318-43-2 p-nitrobenzyl (4R,5R,6S)-6-<(1R)-1-tert-butyldimethylsilyloxyethyl>-3-diphenylphosphoryloxy-4-methyl-7-oxo-1-azabicyclo<3.2.0>hept-2-en-2-carboxylate 

Relevant articles and documents

CARBAPENEM COMPOUNDS

This invention relates to carbapenem compounds, their stereoisomers, pharmaceutically acceptable salts or N-oxides thereof, which may be useful for the treatment of bacterial infections, particularly drug-resistant bacterial infections, as well as the pro

Highly stereocontrolled synthesis of the 1β-methylcarbapenem key intermediate by the Reformatsky reaction of 3-(2-bromopropionyl)-2-oxazolidone derivatives with a 4-acetoxy-2-azetidinone

The key synthetic intermediate (4) of 1β-methylcarbapenems (1~3) was efficiently synthesized by employing highly stereocontrolled Reformatsky reaction (C4-alkylation) of 3-(2-bromopropionyl)-2-oxazolidone derivatives (6) with (3R,4R)-4-acetoxy-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidino ne (5) in the presence of zinc dust followed by removal of 2-oxazolidone moieties. The best diastereoselectivity (β:α = 95:5) could be realized by uses of sterically crowded achiral 2-oxazolidone derivatives such as 4,4-dimethyl-, 4,4,5,5-tetramethyl, and 4,4-dibutyl-5,5-pentamethylene-2-oxazolidone and higher reaction temperatures (refluxing tetrahydrofran). The remarkable diastereoselectivities observed for the Reformatsky reactions could be explained by means of the weakly chelating transition state models.

Syntheses of chiral intermediates of 1-β-methylcarbapenems: (3S,4R)-3-[1(R)-tert-butyldimethylsilyloxyethyl]-4-chloroazetidin-2-one and yldimethylsilyloxyethyl]-4-[1(R)-tert-butylthiocarbonylethyl]azetidin-2-one

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