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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1799522Generated: October 31, 2026

Water → HCID 59615778, compound

https://huagongshe.com/reaction/1799522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHCID 49847091HCID 49847091—
SolventHydrazine hydrate (1:1)HCID 24654—
ProductHCID 59615778HCID 59615778—

Reaction Steps

As shown in step 2-ii of Scheme 2, compound 1003 (400 mg, 1.56 mmol) was stirred in hydrazine hydrate at 70° C. for 20 minutes. Water was added and the resulting precipitate was collected by filtration, washed with water, and dried under high vacuum to produce 4-methyl-5-(pyridin-3-ylethynyl)thiazol-2-amine (compound 1004), which was used in subsequent reactions as is.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08344153B2
Source datasetuspto-grants-2013_01
ORD IDord-d998334c298045fdb025f2138eee204d
Source noteuspto-grants-2013_01