(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

Base Information

Chemical Name:(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate
CAS No.:1443538-87-1
Molecular Formula:C₂₀H₁₉F₂N₃O₂
Molecular Weight:371.387
Hs Code.:

Synonyms:(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

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Chemical Property of (R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

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Technology Process of (R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

There total 4 articles about (R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate 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:

: 885276-93-7
ethyl 5-bromopyrazolo[1,5-a]pyridine-3-carboxylate

: 1218935-60-4,1197238-95-1,1443624-23-4
(2R)-2-(2,5-difluorophenyl)pyrrolidine hydrochloride

: 1443538-87-1
(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

Guidance literature:: With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; In 1,4-dioxane; at 100 ℃; for 2h; Inert atmosphere;

Reference yield:

: 1443538-31-5
(R)-1-((S)-tert-butylsulfinyl)-2-(2,5-difluorophenyl)pyrrolidine

: 1443538-87-1
(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1: hydrogenchloride / 1,4-dioxane / 4 h / 20 - 35 °C

2: tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; caesium carbonate / 1,4-dioxane / 2 h / 100 °C / Inert atmosphere

With hydrogenchloride; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; In 1,4-dioxane;

Reference yield:

: 1216260-42-2
4‐chloro‐1‐(2,5-difluorophenyl)butan-1-one

: 1443538-87-1
(R)-ethyl 5-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyridine-3-carboxylate

Guidance literature:: Multi-step reaction with 4 steps

1.1: titanium(IV) tetraethanolate / tetrahydrofuran / 16 h / 70 °C

2.1: lithium triethylborohydride / tetrahydrofuran / 3 h / -78 °C

2.2: -78 - 0 °C

3.1: hydrogenchloride / 1,4-dioxane / 4 h / 20 - 35 °C

4.1: tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; caesium carbonate / 1,4-dioxane / 2 h / 100 °C / Inert atmosphere

With hydrogenchloride; titanium(IV) tetraethanolate; tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; lithium triethylborohydride; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'-binaphthyl; In tetrahydrofuran; 1,4-dioxane;