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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 537053Generated: October 30, 2026

Hydrazine hydrate (1:1) → HCID 178474054, compound

https://huagongshe.com/reaction/537053

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantDimethylformamide dimethyl acetalHCID 78373—
ReactantHCID 66749802HCID 66749802—
SolventTolueneHCID 1140—
ProductHCID 178474054HCID 178474054359.7%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of N-{4-[4-acetyl-5-(2-chlorophenyl)-1,3-oxazol-2-yl]-5-methylpyridin-2-yl}acetamide (0.12 g, 0.24 mmol) and DMF-DMA (0.84 mL, 0.63 mmol) in toluene (0.5 mL) was allowed to stir at 100° C. for 5 days, during which time several additional portions of DMF-DMA were added. The reaction mixture was concentrated and the residue was redissolved in AcOH (2 mL). Hydrazine hydrate (0.13 mL, 2.63 mmol) was added and the reaction mixture was allowed to stir at 100° C. for 4 days. The reaction mixture was concentrated and the residue was purified by column chromatography to give N-{4-[5-(2-chlorophenyl)-4-(1H-pyrazol-3-yl)-1,3-oxazol-2-yl]-5-methylpyridin-2-yl}acetamide (Compound I-30) (0.34 g, 35%). LCMS (FA): m/z=394 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859768B2
Source datasetuspto-grants-2014_10
ORD IDord-cdbf05fc762840ccb6deff8e757601f9
Source noteuspto-grants-2014_10