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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2238215Generated: October 31, 2026

2-Amino-5-bromopyridine → 5-[5-(4-Chloro-phenyl)-7-cyclopropyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridin-2-ylamine

https://huagongshe.com/reaction/2238215

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-5-bromopyridineHCID 70622—
Reactant5-(4-Chloro-phenyl)-7-cyclopropyl-3-ethynyl-pyrazolo[1,5-a]pyrimidineHCID 86607996—
Product5-[5-(4-Chloro-phenyl)-7-cyclopropyl-pyrazolo[1,5-a]pyrimidin-3-ylethynyl]-pyridin-2-ylamineHCID 67000873—

Reaction Steps

The title compound was prepared from 5-(4-chloro-phenyl)-7-cyclopropyl-3-ethynyl-pyrazolo[1,5-a]pyrimidine (example C.5) (73 mg, 0.25 mmol) and 2-amino-5-bromopyridine (43 mg, 0.25 mmol) according to general procedure II. Obtained as an orange solid (14 mg, 15%). MS (ISP) 386.3 [(M+H)+]; mp 233-235° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07718661B2
Source datasetuspto-grants-2010_05
ORD IDord-8b4c9f75aeb7406d99d27ec0509adc47
Source noteuspto-grants-2010_05