79434-35-8

Upstream product

• 62284-24-6 methyl (2R)-<(3S,4R)-4-(benzothiazol-2-yldithio)-2-oxo-3-phenylacetamidoazetidin-1-yl>-3-methylbut-3-enoate 
• 79386-25-7 methyl (2R)-2-<(3S,4S)-4-(benzothiazol-2-ylthio)-2-oxo-3-phenylacetamidoazetidin-1-yl>-3-methylbut-3-enoate 
• 67144-72-3 (2R)-<(3S,4R)-4-(benzothiazol-2-yldithio)-2-oxo-3-phenylacetamidoazetidin-1-yl>-3-methylbut-3-enoic acid 
• 4052-54-4 Penicillin G 1-(s)-oxide 
• 186581-53-3 diazomethane 
• 79386-27-9 (1S,5R)-3-phenylmethyl-6-<(1R)-1-carboxy-2-methylprop-2-enyl>-4-oxa-2,6-diazabicyclo<3.2.0>hept-2-en-7-one 

Downstream Products

• 79386-25-7 methyl (2R)-2-<(3S,4S)-4-(benzothiazol-2-ylthio)-2-oxo-3-phenylacetamidoazetidin-1-yl>-3-methylbut-3-enoate 
• 34104-19-3 methyl 2-<(1S,5R)-3-benzyl-7-oxo-4-oxa-2,6-diazabicyclo<3.2.0>hept-2-en-6-yl>-3-methylbut-2-enoate 
• 89766-20-1 (R)-2-[(2-Benzyl-oxazole-4-carbonyl)-amino]-3-methyl-but-3-enoic acid methyl ester 
• 89766-19-8 (2S)-N-<(1R)-1-carboxy-2-methylprop-2-enyl>-3,3-diethoxy-2-phenylacetamidopropionamide 
• 79386-26-8 methyl 2-<(3S)-4-(benzothiazol-2-ylthio)-2-oxo-3-phenylacetamidoazetidin-1-yl>-3-methylbut-2-enoate 

Relevant academic research and scientific papers

Studies Related to β-Lactam Antibiotics. Part 7. Facile Formation of Oxazolinoazetidinones from Benzothiazolyldithioazetidinones and Related Reactions

4β-(Benzothiazol-2-yldithio)azetidin-2-one (2a), derived from penicillin G sulphoxide ester (1a), is converted competitively into the oxazolinoazetidinone (3a) and 4α-(benzothiazol-2-ylthio)azetidinone (4a) upon treatment with triphenylphosphine at room t