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CAS 108-05-4
1-Acetoxyethylene
Codes：Tazobactam Sodium-011
Application context (from source-drug indications)
腹腔感染他唑巴坦钠/头孢洛生呼吸机相关性肺炎他唑巴坦钠/头孢洛生泌尿系统感染他唑巴坦钠/头孢洛生社区获得性细菌肺炎他唑巴坦钠/头孢洛生肾盂肾炎他唑巴坦钠/头孢洛生医院获得性肺炎他唑巴坦钠/头孢洛生细菌感染头孢他啶/他唑巴坦钠呼吸道感染头孢他啶/他唑巴坦钠泌尿系统感染头孢他啶/他唑巴坦钠
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 他唑巴坦钠/头孢洛生Tazobactam Sodium/Ceftolozane | Tier C — Watch / trade | - |
| 头孢他啶/他唑巴坦钠Ceftazidime/Tazobactam Sodium | Tier C — Watch / trade | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
(2S,5R)-2beta-[(Benzhydryloxy)carbonyl]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane4-oxide→1,3-Benzothiazole-2-thiol→(2R)-2-[(2R)-2-[(Benzothiazol-2-yl)dithio]-4-oxoazetidin-1-yl]-3-methyl-3-butenoic acid benzhydryl ester→(2S-(2alpha,3beta,5alpha))-3-(Chloromethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid diphenylmethyl ester→Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate→Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate→1-Trimethylsilylethyne→Benzhydryl 2a-methyl-2beta-(4-trimethylsilyl-1,2,3-triazol-1 ylmethyl)penam-3a-carboxylate-1,1-dioxide→Benzhydryl (2S,3S,5R)-3-((1H-1,2,3-triazol-1-yl)methyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide→Acetylene→1-Acetoxyethylene→(2S,3S,5R)-3-Methyl-4,4,7-trioxo-3-(triazol-1-ylmethyl)-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
(2S,5R)-2beta-[(Benzhydryloxy)carbonyl]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane4-oxide→1,3-Benzothiazole-2-thiol→(2R)-2-[(2R)-2-[(Benzothiazol-2-yl)dithio]-4-oxoazetidin-1-yl]-3-methyl-3-butenoic acid benzhydryl ester→(2S-(2alpha,3beta,5alpha))-3-(Chloromethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid diphenylmethyl ester→Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate→Benzhydryl (2S,3S,5R)-3-(azidomethyl)-3-methyl-4,4,7-trioxo-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate→1-Trimethylsilylethyne→Benzhydryl 2a-methyl-2beta-(4-trimethylsilyl-1,2,3-triazol-1 ylmethyl)penam-3a-carboxylate-1,1-dioxide→Benzhydryl (2S,3S,5R)-3-((1H-1,2,3-triazol-1-yl)methyl)-3-methyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate 4,4-dioxide→Acetylene→1-Acetoxyethylene→(2S,3S,5R)-3-Methyl-4,4,7-trioxo-3-(triazol-1-ylmethyl)-4lambda6-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
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