(3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one

Base Information

• Chemical Name: (3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one
• CAS No.: 88140-00-5
• Molecular Formula: C₅₀H₄₄N₃O₁₂P
• Molecular Weight: 909.886

Synonyms:(3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one

Chemical Property of (3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one

Chemical Property:

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Technology Process of (3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one

There total 6 articles about (3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 65.0%

(3S*,4R*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-<4'-(2-t-butyldimethylsilyloxyethyl)phenylcarbonyl>methyl-azetidin-2-one (88139-95-1) → (3S*,4R*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one (88140-00-5)

Guidance literature:

With hydrogenchloride; In N,N-dimethyl-formamide; for 0.2h; Ambient temperature;

DOI:10.1016/S0040-4020(01)92147-7

Reference yield:

4-bromophenethanol (4654-39-1) → (3S*,4R*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one (88140-00-5)

Guidance literature:

Multi-step reaction with 3 steps

1: 78 percent / Et₃N / CH₂Cl₂ / 0 °C

3: 65 percent / conc HCl / dimethylformamide / 0.2 h / Ambient temperature

With hydrogenchloride; triethylamine; In dichloromethane; N,N-dimethyl-formamide;

DOI:10.1016/S0040-4020(01)92147-7

Reference yield:

1-(t-butyldimethylsilyloxy)-2-(4-bromophenyl)ethane (73899-15-7) → (3S*,4R*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-2-hydroxyethylphenyl)carbonylmethyl-azetidin-2-one (88140-00-5)

Guidance literature:

Multi-step reaction with 2 steps

2: 65 percent / conc HCl / dimethylformamide / 0.2 h / Ambient temperature

With hydrogenchloride; In N,N-dimethyl-formamide;

DOI:10.1016/S0040-4020(01)92147-7

upstream raw materials:

(3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-<4'-(2-t-butyldimethylsilyloxyethyl)phenylcarbonyl>methyl-azetidin-2-one

4-bromophenethanol

1-(t-butyldimethylsilyloxy)-2-(4-bromophenyl)ethane

{(2R,3S)-2-(2-Hydroxy-ethyl)-3-[(R)-1-(2-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid 2-nitro-benzyl ester

Downstream raw materials:

(3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-(4'-carboxymethylphenyl)carbonylmethyl-azetidin-2-one

(5R^*,6S^*)-2-<4'-(N-methylamidomethyl)phenyl>-6-<(R^*)-1-hydroxyethyl>-1-carbapen-2-em-3-carboxylic acid

o-nitrobenzyl-(5R^*,6S^*)-2-<4'-(N-methylamidomethyl)phenyl>-6-<(R^*)-1-(o-nitrobenzyloxy-carbonyloxy)ethyl>-1-carbapen-2-em-3-carboxylate

(3S^*,4R^*)-1-(o-nitrobenzyloxycarbonyltriphenylphosphoranylidene)methyl-3-<(R^*)-1-(o-nitrobenzyloxycarbonyloxy)ethyl>-4-<4'-(N-methylamidomethyl)phenylcarbonylmethyl>-azetidin-2-one

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