1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

Base Information

Chemical Name:1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester
CAS No.:280120-07-2
Molecular Formula:C₂₉H₂₀FN₅O₅
Molecular Weight:537.507
Hs Code.:

1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1<i>H</i>-pyrazolo[4,3-<i>d</i>]pyrimidine-3-carboxylic acid ethyl ester

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Chemical Property of 1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

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Technology Process of 1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

There total 9 articles about 1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl 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:

: 17417-09-3
2-fluoro-5-nitrobenzonitrile

: 280120-07-2
1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 9 steps

1.1: 95 percent / H₂ / Pd/C / ethanol / 760 Torr

2.1: NaNO₂; aq. HCl / 0 °C

2.2: 55 percent / aq. NaOAc / methanol / 0 °C

3.1: K₂CO₃ / dimethylformamide / 90 °C

4.1: NaNO₂; TFA / 0 °C

4.2: 80 percent / NaN₃

5.1: 90 percent / aq. LiOH / tetrahydrofuran

6.1: (COCl)2 / CH₂Cl₂

7.1: DMAP / CH₂Cl₂

8.1: SnCl₂*H₂O / methanol / 65 °C

9.1: Heating

With hydrogenchloride; dmap; lithium hydroxide; oxalyl dichloride; hydrogen; potassium carbonate; trifluoroacetic acid; tin(ll) chloride; sodium nitrite; palladium on activated charcoal; In tetrahydrofuran; methanol; ethanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.bmcl.2006.07.002

Reference yield:

: 280120-03-8
cyano-[(3-cyano-4-fluoro-phenyl)-hydrazono]-acetic acid ethyl ester

: 280120-07-2
1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 7 steps

1.1: K₂CO₃ / dimethylformamide / 90 °C

2.1: NaNO₂; TFA / 0 °C

2.2: 80 percent / NaN₃

3.1: 90 percent / aq. LiOH / tetrahydrofuran

4.1: (COCl)2 / CH₂Cl₂

5.1: DMAP / CH₂Cl₂

6.1: SnCl₂*H₂O / methanol / 65 °C

7.1: Heating

With dmap; lithium hydroxide; oxalyl dichloride; potassium carbonate; trifluoroacetic acid; tin(ll) chloride; sodium nitrite; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.bmcl.2006.07.002

Reference yield:

: 280120-04-9
3-Ethyl-5-methyl 1-(4-fluoro-3-cyano)phenyl-4-aminopyrazole-3,5-dicarboxylate

: 280120-07-2
1-(3-cyano-4-fluoro-phenyl)-6-(2'-formyloxymethyl-biphenyl-4-yl)-7-oxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 6 steps

1.1: NaNO₂; TFA / 0 °C

1.2: 80 percent / NaN₃

2.1: 90 percent / aq. LiOH / tetrahydrofuran

3.1: (COCl)2 / CH₂Cl₂

4.1: DMAP / CH₂Cl₂

5.1: SnCl₂*H₂O / methanol / 65 °C

6.1: Heating

With dmap; lithium hydroxide; oxalyl dichloride; trifluoroacetic acid; tin(ll) chloride; sodium nitrite; In tetrahydrofuran; methanol; dichloromethane;
DOI:10.1016/j.bmcl.2006.07.002