29124-80-9

Upstream product

• 27487-21-4 p-nitrobenzyl benzylpenicillinate 
• 113-98-4 Penicillin G potassium 
• 100-11-8 1-bromomethyl-4-nitro-benzene 

Downstream Products

• 192049-49-3 2-((1R)-3-benzyl-7-oxo-(1rH,5cH)-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-3-methyl-but-2-enoic acid 4-nitro-benzyl ester 
• 56737-44-1 (6R)-7t-diethoxyphosphorylamino-3-methyl-8-oxo-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 29124-83-2 p-nitrobenzyl ester of 7-aminodeacetoxycephalosporanic acid 
• 81651-22-1 p-nitrobenzyl benzylpenicillinate 1,1-dioxide 
• 76085-04-6 (R)-2-((2R,3R)-2-Chlorosulfinyl-4-oxo-3-phenylacetylamino-azetidin-1-yl)-3-methyl-but-3-enoic acid 4-nitro-benzyl ester 
• 62564-96-9 1ξ-oxo-6β-diethoxyphosphorylamino-1λ⁴-penicillanic acid 4-nitro-benzyl ester 
• 156927-21-8 3-Methyl-2-[(2R,3R)-2-(5-methyl-isoxazol-3-ylsulfinamoyl)-4-oxo-3-phenylacetylamino-azetidin-1-yl]-but-2-enoic acid 4-nitro-benzyl ester 
• 153784-98-6 (R)-3-Methyl-2-[(2R,3R)-2-(5-methyl-isoxazol-3-ylsulfinamoyl)-4-oxo-3-phenylacetylamino-azetidin-1-yl]-but-3-enoic acid 4-nitro-benzyl ester 
• 153785-20-7 3-Methyl-2-[(2R,3R)-2-(5-methyl-isoxazol-3-ylsulfamoyl)-4-oxo-3-phenylacetylamino-azetidin-1-yl]-but-2-enoic acid 4-nitro-benzyl ester 
• 153785-27-4 2-((2R,3R)-2-Benzylsulfamoyl-4-oxo-3-phenylacetylamino-azetidin-1-yl)-3-methyl-but-2-enoic acid 4-nitro-benzyl ester 
• 153785-28-5 3-Methyl-2-((2R,3R)-2-methylsulfamoyl-4-oxo-3-phenylacetylamino-azetidin-1-yl)-but-2-enoic acid 4-nitro-benzyl ester 
• 153785-12-7 (2R,3R) 1-(1'-p-nitrobenzyloxycarbonyl-2'-methyl-prop-1'-enyl)-2-methylaminosulfinyl-3-phenylacetamido-4-oxo-azetidine 
• 153785-34-3 3-Methyl-2-[(2R,3R)-2-(5-methyl-isoxazol-3-ylsulfamoyl)-4-oxo-3-phenylacetylamino-azetidin-1-yl]-but-2-enoic acid 
• 153785-21-8 (2R) 1-(1'-Benzyloxycarbonyl-2'-methyl-prop-1'-enyl)-2-benzylaminosulfonyl-3,3-dibromo-4-oxo-azetidine 

Relevant academic research and scientific papers

Cefovecin intermediate and preparation method thereof

The invention discloses a cefovecin intermediate and a preparation method thereof. The preparation method comprises the following steps: 1) reacting an intermediate isomer with ozone to obtain an intermediate acetate compound, and 2) reducing the intermed

Intermediate isomer for preparing cefovecin by taking penicillin potassium salt as raw material and preparation method of intermediate isomer

The invention discloses an intermediate isomer for preparing cefovecin by taking penicillin potassium salt as a raw material and a preparation method therefor. An intermediate ring-opening rearrangement material is used as a raw material to perform isomer