4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester

Base Information

• Chemical Name: 4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester
• CAS No.: 131330-63-7
• Molecular Formula: C₃₂H₃₀N₆O₄S
• Molecular Weight: 594.694

Synonyms:

Chemical Property of 4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester

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Technology Process of 4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester

There total 2 articles about 4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester 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: 34.3%

diazomethane (186581-53-3,908094-01-9,334-88-3) + diphenylmethyl 7β-phenylacetamido-3-vinyl-3-cephem-4-carboxylate (94796-13-1) → Diphenylmethyl (6R,7R)-7-phenylacetamido-3-(1-pyrazolin-3-yl)ceph-3-em-4-carboxylate (124667-16-9) + Benzhydryl 7-Phenylacetamido-3-(3'-pyrazolyl)-3,4-(4'',3''-pyrazolino)cepham-4-carboxylate (131330-63-7)

Guidance literature:

In diethyl ether; dichloromethane; at 0 ℃; for 1h;

DOI:10.1002/jhet.5570270521

Reference yield:

diazomethane (186581-53-3,908094-01-9,334-88-3) + 8-Oxo-7-phenylacetylamino-3-vinyl-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester (94796-13-1) → 3-(4,5-Dihydro-3H-pyrazol-3-yl)-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester + 4a-(4,5-Dihydro-3H-pyrazol-3-yl)-1-oxo-2-phenylacetylamino-2,2a,4a,5-tetrahydro-1H,4H-3-thia-6,7,7b-triaza-cyclobuta[e]indene-7a-carboxylic acid benzhydryl ester (131330-63-7)

Guidance literature:

In dichloromethane; Ambient temperature;

DOI:10.1016/S0040-4039(00)99636-9

upstream raw materials:

diazomethane

diphenylmethyl 7β-phenylacetamido-3-vinyl-3-cephem-4-carboxylate

8-Oxo-7-phenylacetylamino-3-vinyl-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester

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