3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

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Chemical Name:3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester
CAS No.:404588-43-8
Molecular Formula:C₂₅H₁₈BrN₇O₂S
Molecular Weight:560.434
Hs Code.:

3-[<i>N</i>'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1<i>H</i>-pyrazolo[3,4-<i>b</i>]pyridine-5-carboxylic acid ethyl ester

Synonyms:3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

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Chemical Property of 3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

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Technology Process of 3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

There total 6 articles about 3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-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: 67.0%

: 56278-50-3
2-cyanomethylbenzothiazole

: 404588-40-5
C₁₆H₁₃BrClN₅O₂

: 404588-43-8
3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

Guidance literature:: With sodium acetate; In ethanol; at 20 ℃; for 1h;
DOI:10.1080/10426500108040253

Reference yield:

: 68029-54-9,95639-00-2
3-(4-bromophenyl)-2-cyanoprop-2-enethioamide

: 404588-43-8
3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 80 percent / pyridine / ethanol

2: 70 percent / NaOMe / methanol / 5 h / Heating

3: 70 percent / hydrazine hydrate / ethanol / 6 h / Heating

4: 64 percent / conc. HCl; sodium nitrite / 1 h / 0 °C

5: 67 percent / AcONa / ethanol / 1 h / 20 °C

With pyridine; hydrogenchloride; sodium methylate; sodium acetate; hydrazine hydrate; sodium nitrite; In methanol; ethanol;
DOI:10.1080/10426500108040253

Reference yield:

: 141-97-9
ethyl acetoacetate

: 404588-43-8
3-[N'-(benzothiazol-2-yl-cyano-methylene)-hydrazino]-4-(4-bromo-phenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 80 percent / pyridine / ethanol

2: 70 percent / NaOMe / methanol / 5 h / Heating

3: 70 percent / hydrazine hydrate / ethanol / 6 h / Heating

4: 64 percent / conc. HCl; sodium nitrite / 1 h / 0 °C

5: 67 percent / AcONa / ethanol / 1 h / 20 °C

With pyridine; hydrogenchloride; sodium methylate; sodium acetate; hydrazine hydrate; sodium nitrite; In methanol; ethanol;
DOI:10.1080/10426500108040253