4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

Base Information

Chemical Name:4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide
CAS No.:247147-21-3
Molecular Formula:C₂₃H₂₁NO₆S
Molecular Weight:439.489
Hs Code.:

Synonyms:4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

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Chemical Property of 4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

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Technology Process of 4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

There total 3 articles about 4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide 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: 85.0%

: 247147-20-2
t-butyl 2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-4-carboxylate 1,1-dioxide

: 247147-21-3
4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

Guidance literature:: With formic acid; at 50 ℃; for 2h;
DOI:10.1007/BF02256809

Reference yield:

: 95671-89-9
t-butyl 7α-methoxy-3-methyl-3-cephem-4-carboxylate 1,1-dioxide

: 247147-21-3
4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

Guidance literature:: Multi-step reaction with 3 steps

1: 68.5 percent / Me₂NH*HCl / H₂O; dimethylformamide; dioxane / 1 h / 90 °C

2: 85 percent / CH₂Cl₂ / 3 h / 20 °C

3: 85 percent / HCOOH / 2 h / 50 °C

With formic acid; N,N-dimethylammonium chloride; In 1,4-dioxane; dichloromethane; water; N,N-dimethyl-formamide; 1: Alkylation / 2: Cycloaddition / 3: Hydrolysis;
DOI:10.1007/BF02256809

Reference yield:

: 165533-58-4
t-butyl 7α-methoxy-3-methyl-2-methylene-3-cephem-4-carboxylate 1,1-dioxide

: 247147-21-3
4-carboxy-2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-3-cephem-1,1-dioxide

Guidance literature:: Multi-step reaction with 2 steps

1: 85 percent / CH₂Cl₂ / 3 h / 20 °C

2: 85 percent / HCOOH / 2 h / 50 °C

With formic acid; In dichloromethane; 1: Cycloaddition / 2: Hydrolysis;
DOI:10.1007/BF02256809